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Mathematics Questions and Answers May 17, 2023

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A blood particle has started at 13.0 cm [N] and has travelled to 27.3 cm [S]. What was its displacement in cm [S]? Round to the one (whole number). Do not enter the unit. Do not enter the direction
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A study asked 10425 random Canadians if they have a predominant left hand. It found out that 1142 were predominantly left-handed individuals. Find a 98% confidence interval for the population of Canadian who are left-handed. Ensure to check for normality and test whether the sample size is valid. The Canadian population is 40, 528, 396 (taken

Move the points below to create a Venn diagram that represent the sets A = {I,II,III,IV } and B = {III,IV, V, VI, VII}? Provide your answer below: C
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S2. Calculate the 90% confidence interval for the following variables, comparing lower, working, middle, and upper classes (CLASS) in the GSS sample. Use the Explore procedure using CLASS as your factor variable (Analyze, Descriptive Statistics, Explore). Make a summary statement of your findings. (Reset Select Cases to All cases before completing

Cul de las siguientes es la herramienta de PNL que desarrolla la habilidad para tener nuevas respuestas y nuevas posibilidades flexibilizando la propia perspectiva ante los acontecimientos? Seleccione una: Bioretroalimentacin Posicin perceptual Reencuadre Visualizacin

Could someone please check my work As part of his summer job at a TeStUrant, JIIl IGALUEU LW Wwun up
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You want a 99% level of confidence since you are working with medical trials. The significance level associate with this level of confidence would be

A major manufacturer of sewer pipe experienced a problem in the pipe's breaking strength. Since this pipe is made of ceramic material, the firing process controls the final strength. Engineers are tasked with devising an experiment to determine the effect of three firing regimes on breaking strength. There are 6 furnaces available for testing

I need help with the question shown in the screenshot. Thank you in advance! 5. A surface consists of points whose distance from the origin is k times the distance from the plane z = 6. For what values of k is the surface an ellipsoid
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What is the most widely used statistic? Group of answer choices Nominal Correlation Coefficient Chi Square None of the above

content area bottom Part 1 a. Use a 0.05 significance level to test the claim that the mean IQ score of people with low blood lead levels is higher than the mean IQ score of people with high blood lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with low lead levels and population 2 consists

Scores on an exam appear bell-shaped with the middle 99.7 % of the scores in the interval ( 85 , 181 ) . According to the empirical rule, the middle 68 % of the scores will lie in which interval? Choose the closest: ( 114 , 149 ) ( 114 , 164 ) ( 106 , 153 ) ( 106 , 152 ) ( 101 , 153 ) ( 114 , 152 ) ( 117 , 149 ) ( 117 , 152 ) ( 101 , 164 )

Consider two areas of your interest in the Greater Miami Area (Miami Date, Broward and Palm Beach counties) by specifying city, or zip code, or neighborhood. For example, "Doral" and "Kendall". 1. Specify the areas below: Area 1 (city/zip code/neightborhood): __________________________ Area 2 (city/zip code/neightborhood):

what is three point zero two five multiplied by two hundred? show multiple solutions to this given

A hardware store orders snow blowers during the summer for delivery in the fall. Each snow blower costs the store $400 and if sold prior to or during the winter sells for a full price of $550. The store's manager doesn't want to carry any unsold snow blowers in inventory from one year to the next, so he reduces the price to $350 in the spring in

were sold? A grocery store sells two brands of sauerkraut. Brand X sells for $5.54 per jar while the No-Name brand sells for $4.46 per jar. If 33 jars were sold for a total of $157.98, how many jars of each brand There were jar(s) of Brand X sold
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Question 11 2 pts An EMT wants to investigate long how it takes an ambulance to arrive to its destination. After recording the times of 8 ambulance drivers, they find the average time is 20.25 minutes. Use o = 10.90 . What is the value of the upper 95% Confidence Interval [ Select ] . What is the value of the lower 95% Confidence interval [ Select
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State the null hypothesis and alternative hypothesis in symbolic form (use transliteration 'mu' in place of ), and find the sample mean salary. Explain whether you reject or fail to reject the null hypothesis, and state a final conclusion that addresses the original claim

What makes up the whole of an entity under consideration is known as _________. a. relationship b. ranking c. distribution d. composition

Q5 [15 pt] Exercise 4.9 of Alpaydin. Let us say, given the samples X; = {x},r]}. we define g;(x) = 1} namely. our estimate for any x 1s the value of the first instance in the (unordered) dataset X;. (a) What can you say about 1ts bias and variance, as compared with g;(x) = 2 (b) What can you say about its bias and variance. as compared with g;(x)
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A taxpayer has three (3) children: An eleven (11) year old, a seventeen (17) year old, and a twenty-two (22) year old. The two youngest are still in grade school, but the oldest is on a self-imposed "gap year" and is not currently in school. None of the children are disabled and all of them live with the taxpayer over half of the year in the same

When you reply to two classmates' posts, respectfully agree/disagree to the post and explain why, while offering an opinion with an example to support it and references. Be sure to do one or more of the following: Agree and explain why you agree. Respectfully disagree and explain why you disagree. Offer an opinion with an example to support it.

The gratitude group experienced statistically lower scores on Life as Whole and Upcoming Week than the hassle and life events groups. Group of answer choices True False

Given a cross tabulation between years of education and income, we would compute percentages in the direction of years of education because Group of answer choices the probability that given X income you will have Y years of education makes sense. the probability that given X years of education you will have Y income makes sense. It doesn't matter

What is the size of end-of-month monthly deposits which will accumulate to $122200 after six years if interest is 5.7% compounded monthly

Student Name: 70 Points A gene is a part of a person's DNA that gets translated into a phenotype, or the expressed traits of an individual. For example, a person's DNA will determine whether a person has light or dark hair and their eye color. In this activity, you will take a survey of hair color and eye color. Then, you will create probability
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The Ball Corporation's beverage can manufacturing plant in Fort Atkinson, Wisconsin, uses a metal supplier that provides metal with a known thickness standard deviation = :000672 mm, Assume a random sample of 56 sheets of metal resulted in an a = .2737 mm. Calculate the 98 percent confidence Interval for the true mean metal thickness. (Round your
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chapter 3-5 multiple choice exam To find the critical value of the F value with alpha=0.05, what R command could you use? a. pf(15.35, 1, 36) b. qf(15.35, 1, 36) c. pf(.95, 1, 36) d. qf(.95, 1, 36) Name:__________________ MAS 432 Name:__________________ MAS 432 17. If the residuals are given by reg$residuals and the degrees of freedom are given by

You are risk averse. If you were offered a situation where on the toss of a coin you won 150 if the coin landed heads or nothing if it were tails, what would be the least amount you would accept if you didn't want to gamble on the toss? Question 3Select one: a. 75 b. 76 c. 78 d. 80

Find the following probability for the standard normal random variable z. a. P(z > 1.61) e. P(z 1.61) = (Round to three decimal places as needed.)
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1. A small hospital is planning for future needs in its maternity wing. The data below show the number of births in each of the past eight years. ( 10 Marks ) Year Births Year Births 1 565 5 615 2 590 6 611 3 583 7 610 4 597 8 623 a. Use simple linear regression to forecast the annual number of births for each of the next three years. ( 6 Marks )

4. Use the given table to approximate f'(a) as accurately as you can. f'(13) = X X 12.0 12.99 13 13.1 a = 13 f ( x ) 1.46 17.46 17.12 22.83 Need Help? Read It Watch It
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Which of the following is an example of the process of evaluation? Group of answer choices Making the judgment that a student has an excellent level of skill attainment with regard to writing fiction. Determining the number of spelling errors a student makes in a five paragraph essay. Counting the number of newly acquired vocabulary words the

5. Define the sequence of functions (fn(x) ) on R by x ifx=1, 5, 3," 1 fn(1)= otherwise and let f(x) be the pointwise limit of this sequence. (a) Is each fn(x) continuous at 0? Justify your answer. (b) Is f(x) continuous at 0? Justify your answer. (c) Does fn(r) converge uniformly to f(x)? Justify your
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Question 1: Answer the below question with at least 1000 words: Develop a research scenario with 2 research questions related that could be answered using a MANOVA and/or multiple regression. Discuss the type of variables and identify the independent and dependent variables along with the rationale for using the chosen statistical test(s). Support

Select all that apply Which of the following is true regarding the application of Chebyshev's theorem and the Empirical Rule? Check all that apply. Multiple select question. Chebyshev's theorem applies only to symmetrical, bell-shaped distributions. The Empirical Rule gives more precise answers for the symmetrical, bell-shaped distribution. Only

Multiple Select Question Select all that apply Consider rolling two dice. Which of the following describe two events that are collectively exhaustive? Multiple select question. Event 1: A value of 7 or more. Event 2: A value of 6 or less. Event 1: A value of 6 or more. Event 2: A value of 8 or less. Event 1: A value of 9 or more. Event 2: A value

2 3. Using derivatives, explain why the function y = (x +5) (3x) does not have any horizontal tangents. [5]
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Is this a true statement, an independent interaction occurs when the researcher mixes the two methods, which can occur at different points in the process but must occur prior to the final interpretation of results

A website is looking for volunteers for a research study involving methicillinresistant Staphylococcus aureus (MRSA), a bacterial infection that is highly resistant to some antibiotics. The website contains the following information about the study. "The Alliance for the Prudent Use of Antibiotics is looking for individuals who have or have had

Contingent means "related to" or "predictable from." Group of answer choices True False

A random sample of 1300 automobiles is selected and categorized by engine size (number of cylinders) and type of drivetrain. The data is given below. 4-Wheel Drive Front-Wheel Drive Rear-Wheel Drive Total 4-Cylinder 20 560 103 683 6-Cylinder 22 185 194 401 8-Cylinder 35 10 171 216 Total 77 755 468 1300 Match each probability to the correct value.

Pls solve problem provided in pencil \f
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As a result of learning, what do I expect my students to know, do, or value (in their careers and future lives)? Why

A brewery produces regular beer and a lower-carbohydrate "light" beer. Steady customers of the brewery buy 10 units of regular beer and 17 units of light beer monthly. While setting up the brewery to produce the beers, the management decides to produce extra beer, beyond that needed to satisfy customers. The cost per unit of regular beer is
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2. Sum of squares Suppose you are interested in the relationship between a person's age and the amount of community activism in which he or she is involved. You randomly select 12 people from each of three different age categories and ask each person to estimate the number of hours spent engaged in any type of community activism or volunteer
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A researcher wants to know if there is a significant difference in heart rate between his male patients and female patients. Based on his finding: t(11) = 0.45, p > 0.05, what can we conclude about the research? . Males average heart rate is 73 beats per minute. . Females average heart rate is 77 beats per minute. O Females have a significantly
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Suppose you hypothesize that victim impact statements are longer (more pages in length) in cases involving violent crimes (v) than cases involving non-violent crimes (nv). Select the correct research hypothesis (H1) and null hypothesis (H0). Question 2 options: H1: v < nv H0: v nv H0: v nv H0: v < nv H1: v nv H1: v = nv H0: v > nv H0: v nv H1: v >

A researcher administers a mood scale to two groups of anxious adults, removes the TV set from one of the groups for two months, and then administers the mood scale again to both groups, the researcher is using a(n) a. An ex post facto design b. A single-group, posttest-only design c. A single-group, pretest-posttest design d. A pretest-posttest,

Section 6.2 Question 5 Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed O with a mean of 100 and a standard deviation of 15. 104 126 The area of the shaded region is .(Round to four decimal places as needed.)
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Suppose you want to know what high school incoming freshman at a particular college came from. To estimate the percentage of incoming freshman from each of the area's high schools you take a sample of 200 incoming college freshman. Match the following: - percentage of the 200 incoming college freshmen who graduated from each area high school - 200

There are 10 people at a meeting and there are 3 different door prizes to give out. How many ways can we select 3 people to receive the door prizes
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Which of the following is the set D for all the possible results of a 6-sided die, or number cube? Select the correct answer below: O D = {6, 1, 5, 2, 4, 3} O D = {1, 3, 5} O D = {2, 4, 6} O D = {1, 2, 3}
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Educators should minimize the number of transitions during the day. True False

Select all that apply Which of the following is true regarding the application of Chebyshev's theorem and the Empirical Rule? Check all that apply. Multiple select question. Chebyshev's theorem applies to any set of values. Both work for skewed distributions. Chebyshev's theorem applies only to symmetrical, bell-shaped distributions. Chebyshev's

) In UC Davis Post Office, a postal clerk serves his customer(s) whose arrival is purely random and independent. The average number of customers' arrivals is 1.2 in every 15 minutes. a) Find the probability that no customer comes to the Post Office in 15 minutes. First define the random variable of interest and determine its distribution

Find the velocity, acceleration, and speed of a particle with position function r(t) = (-3t sin(t), - 3t cos(t), -8t2) v (t ) = a(t) = v(t)
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LaFavre Foundry has hired 50 out of 100 male applicants and 10 out of 20 female applicants. It calculates that the selection of female applicants is 100% the rate of male applicants. Which statement is true? Question 11 options: There is no adverse impact at LaFavre Foundry. There is adverse impact on women. There is adverse impact on men. The

A lurking variable is a relevant predictor that has been of the model

Let's try to find the sample space (a complete list of simple events/outcomes): 1) A family that has four children. Let's use "b" to denote a boy and "g" to denote a girl. 2) A bag consists of 6 red marbles, 4 blue marbles. Three marbles are randomly taken from the bag without replacement. 3) A bag consists of 8 red marbles, 2 blue marbles. Three

Can you help to solve this quickly? if you can't see the questions clearly, please answer the one you can see clearly. h one of the following sequences is converge for =3,4.5.6. n+1 b. {In[m+1]] c Vm+1 7 +1 - 5 iven f (x. y) = ye" . What is the be"+ xe" bye" + re " c. 2TP" d. me"+2ve" What is the radius of convergence of the power series S=(x-1)'
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what is the 5-period simple moving average forecasts for periods 8, 9, and 10

Your friend forgot to study for your midterm exam. The midterm consists of a multiple choice test with a total of five possible answer choices for each question (A through E). [Note: This is hypothetical and regarding a different class. Your Math 117 midterm will have a format similar to the last midterm.] is the probability of your friend NOT

The population in a research study: includes the total population where the study will be conducted. includes the total number of employees of an organization. is the demographic information of the study participants. is the eligibility criterion for participants

3 1 also has a periodic continued fraction, and hence derive 3

An event or fact is probable Multiple choice question. if there is even the slightest chance that it might be true. if there is a 1% to 49% chance that it might be true. only if there is a 100% likelihood that it is true. if there is a better than 50% chance that it might be true

The statement "Individuals who jog regularly are more likely to have a body mass index (BDI) within normal range compared with those who do not jog regularly" represents a null hypothesis. Question 4 options: True False

Can you show step by step how to solve this problem M Pseudo Static Biomechanics problem (Review Q) *A 76 kg person, 1.83m tall stubs their toe during the swing phase of gait (walking). The Leg (tibia) and foot are at a 90 angle to each other and the tibia is at a 20 angle back from vertical. At the instant of to stubbing, the applied force is
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Chapter 3's Classwork: Show work neatly, clearly and in pencil. Math 54 Name Measures of the Center Instructor Date 1. The following data set represents the amount of sodium in one serving of a random sample of 10 cereals. All values are in grams/serving. 130 290 210 140 280 110 80 30 240 145 Include units in all responses and where necessary,
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El instituto colombiano de bienestar familiar ICBF realiz un estudio a 320 estudiantes sobre los problemas de salud de los estudiantes en Colombia y recopil informacin sobre tres reas principales: Estrs (E), trastorno del sueo (T) y ansiedad (A). 120 estudiantes experimentan trastorno del sueo (T) que afectan su calidad de vida. 150 estudiantes

We've given you one hypothesis below. Provide an alternative hypothesis to answer the question "How do larval anemone fish identify the appropriate anemone host species at the time of settlement?" Give it a brief, informative name and a brief (1 sentence or even just a few words) description and a prediction for each of the two hypothesis.

male data: mean salary- $190,715 # of male employees- 136 standard deviation- 97854.12542 female data: mean salary- $149,314 # of female employees- 89 standard deviation- 86129.62199 level of significance (l. o. s)= =0.05=5%

determine the volume of a solid by integrating a cross section 71. The base is the region under the parabola y = 1 - x and above the x-axis. Slices perpendicular to the y-axis are squares
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The annual earnings (in dollars) of 35 randomly selected microbiologists are shown in the data table. Use the data to (a) find the sample mean, (b) find the sample standard deviation, and (c) construct a 98% confidence interval for the population mean. 100,707 80,928 77,810 67,423 51,211 67,873 94,419 65,990 79.001 74.348 44.252 86,289 60,376
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Compute 'mu', the expected number (mean) of repeat offenders out of five. (Round to 3 decimal places)

Which of the following is a good rationale for choosing a multilevel design? Group of answer choices Research suggests that there may be a linear relationship. The grouping variable is typically divided into two groups. There have been many two-group designs that have established the relationship or effect, and you are examining a new population

Exercise 4-4: In this problem, we'll consider the telegraph equation, which can describe the voltage in a wire, u(x, t), as Utt + ( a + B) ut + a Bu = chuxx. The initial condition we will use is a o function like pulse at the center of the wire 0, x - 0.1 u(2, 0) = 3 10, -0.1
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It is known that -+ 2! +. .., and sin r = T 3! 3! 5 , for any r E R. (a) [1 mark] Write the three terms of the series of e2z . (b) [2 marks] Calculate the first three terms of f(r) = e sinc (in increasing powers of I)
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The following are all necessary to determine a cause and effect relationshipexcept: Any extraneous variables must be ruled out as the cause The dependent variable must come before the Independent variable in a time sequence There must be a relationship between the intervention and the outcome The independent variable must come before the dependent

9. When creating a Learning Progression teachers must: A. Save time by moving straight to the target aim. B. Determine the measurability of each building block. C. Include even the building blocks that cannot be assessed. D. Arrange building blocks in a random manner. E. A and B are correct. F. B and D are correct. G. All these alternatives are

The question, "What's the purpose of this appraisal?" can be answered by this first step of the appraisal process. Unset starred question Determine highest and best use. Estimate land value. Identify data needed. State the

You are a researcher examining the GRE scores of U.S. test takers between 2010 and 2017 to understand the distribution of scores. The range for the verbal and quantitative scores for the GRE falls between 130 and 170, and the mean score is 150. he line for this data's normal curve begins above the x-axis at 130, rises to its height at 150, then

hlth 511 is there a significant relationship between age and number of hours per year of christian services

What does s represent in the formula for the standard deviation of grouped data variance? Multiple choice question. The sample standard deviation The class frequency The sample size

An observational study alone can establish a causal connection between explanatory and response variables Group of answer choices True False

The gratitude group experienced statistically significant lower scores on both Life as Whole and Upcoming Week when compared to both hassle and life events groups. Group of answer choices True False

In Hector's study, he discovered that the relationship between two of his variables was due to another variable he did not measure. Hector's study had ______. Group of answer choices a significant relationship a causative relationship a direct causation a spurious relationship

What of the following posits a difference between groups where the difference is specified? Group of answer choices the null hypothesis a nondirectional hypothesis a directional hypothesis the research hypothesis

7. (10 pts) Draw the Hasse Diagram for the poset: ({{1), {2), (4), (1, 2), (1, 3), {2, 4}, (3, 4), {1, 2, 3}, (2, 3, 4} }, 9)
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In a survey of 2884 adults, 1452 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the results. A 99% confidence interval for the population proportion is (Round to three decimal places as needed.) Interpret your results. Choose the correct answer below. O A.
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According to the National Homebuilders Association, the average household spends between $400 and $3800 per year on home repairs per year. Suppose the amount spent on home repairs is uniformly distributed between these two amounts. What is the standard deviation of the amount spent on home repairs

The responses of 1150 voters to a survey about the way the media conducted themselves in a recent political campaign are shown in the accompanying Pareto chart. Find the probability of each event listed in parts (a) through (d) below. Click the icon to view the Pareto chart. Pareto Chart (a) Randomly selecting a person from the sample who did not
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0/1 pt 9 100 = 2 0 Details . Question 10 137 If 0 = 6 -, then find exact values for the following: sec(#) equals csc(0) equals tan (() equals cot (0) equals Question Help: Video Message instructor Submit
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compare and contrast the variability in annual salary of the two groups. speak specifically about the center of distribution in examination bachelors min 25 q1 55 q2 67 q3 75 max 80 and doctorate earners min 55 q1 67 q2 90 q3 110 max 115 what is the center of distribution

Use logarithm properties to write 12Inx + 5Iny -1 1Inz as a single logarithm. a.) O In 60xy 11z b.) Inx12y5 O In2 11 C.) 12, 5 O In 11 d.) Inx 125 O Inz 11
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Could someone please check my work using partial differential equations Let (x1, y1), (X2, y2), . .. , (m, ym) be given points by experimental ob- Find the formula for a and b. servation. Let y = ax2 + b be the best fit curve by least square criterion. Assume f(x) = axa+b is the best fit for the given date by Least - squares criterion. Find the
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2 questions pictured Question 11 2 pts Case studies are really only useful in an academic setting. O True O False D Question 12 2 pts What is the probability of drawing a Queen from a deck of cards (list any explanations or details needed to reach your answer)
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A r of .50 does not yield 50%. Group of answer choices True False

1.Give an example of an interval dataset. 2. Is the data in the frequency table below Nominal, Interval, or Ordinal level of measurement? 3 1 4 3 3 5 1 2 2 4 2431 5 3 6 5 4 N 3 0 3 1 5 4 4 2 3 3 4 2 3 1 1 6 2 2 5 4 4 4 23 1Lunch Choices Frequency Mac 'n Cheese 5 Sandwich 8 Soup Hamburger Chicken Nuggets 1
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