Mathematics Questions and Answers December 07, 2019

5. Let a, b, c E R, a

5. Let o, b, c e R, a b. Suppose that f and, g functions on (o, bl. Ese only the Riemann tegral to prove the following statement. Yake sure to work. If f (x) g(.T,) 7 on la. bl then get hd.t 7 (b

Find the following limits, or explain why they do not exist: x (a) lim (b) lim In tanh sin (c) lim tanh(sin n) ->OO n-DO n

Fill in the P (X= x) values to give a legitimate probability distribution for the discrete random variable X, whose possible values are 1, 3, 4, 5, and 6. Value x of X P ( X = x) 0.26 0.15 4 5 6 0.15 X

Gauss Elimination with MaximumPivot Strategy (GEMPS) Given the equations: with backward substitution

Given the equations 2X1 6X2 X3 38 3X1 X2 7X3 34 8X1 2X3 20

Given the following data set: 19 17 AW NW - U NA U - NO-aww-NO - > n = 20 I'M= xi = 60, I'M= I2 - 246, Luz - 179, I'M= Civi - 532, (82 - 2) 2 - 2,032.594 Use linear regression to find the coefficient of determination, 72 0.422941 O 4.41E-4 0.230841 0.002041

Discuss the conditions that should be met to have a discrete probability distribution.

1. Solid S is bounded by the ff. surfaces. Sketch S and label its boundaries. z=x +y- 4, 2 =8-5x2 - 5y', r

Read, analyze and solve for the following. Express your answers as decimals rounded off to two decimal places. For the volume, multiply it to the value of Pi (3.14) to get the final answer. Question: Determine the volume of the solid obtained by rotating the region bounded by y= x^2 and y=x about the x-axis.

X - 8. (7 points) Given: dy dx 2 a) Find the general solution to the differential equation: 8a) b) Find the particular solution at y (0) = 2: 8b)

Use this tab e or the ALEKS calculator to complete the following. Give your answers to four decimal piates {for example, 0.1234}. {a} Find the area under the standard normal curve to the right of z = 2.6?. D {In} Find the area under the standard normal curve between 2 = 2.16 and z = 41.73. D

Josh wants to know how man school pr did a wunver and found that: 25 turtents rio 1 sport . 32 vudents do ] iports . I students do d sports What is the average number of sports practhed by a student in Josh's school, to the nearest y numberT

2. [-/5 Points] DETAILS LARCALC11 1.5.046. MY NOTES ASK YOUR TEACHER Find the one-sided limit (if it exists). (If an answer does not exist, enter DNE.) lim x - (1/2)+ COS x Viewing Saved Work Revert to Last Response

Arrival of cars to a carwash follows an exponential distribution, with a mean of 3 minutes. A car has just arrived. What is the probability that it will be between 10 and 15 minutes before the next car arrives? two decimals.

Use integration by parts to evaluate the integral: 6tsin(t)dt6tsin(t)dt

9 b) Find the number b such that the line y = b bisects the same area under the curve y = 1/x2 for 1 s X s 4. a

Check here for instruct plete this problem. A person's I sal by $10,675 over a 7-year period. Find the average rate of change of the salary per year. The average rate of change is $ | per year. (Round to the nearest dollar.) MacBook Pro

An urn contains 10 blue balls and 8 red balls. We draw balls from this urn one by one with replacement. What is the probability that we have to draw at least 6 balls before we see at least one ball of each color?

The effect size index phi , is appropriate for? Group of answer choices 2 x 2 X 2 tests of independence any X 2 test of independence X 2 tests of independence with more than 1 df all X 2 tests

Solve and write the answer in interval notation: 7x - 2

Given a sample mean (xbar) of 92mph and a population standard deviation sigma () of 3.7 from a previous study where n= 50 values, find the z value and p value. The data indicates that the population mean () for the speed of Tom's fast ball is 95 mph but we think it may be lower based on our data. Test the claim that < 95mph. Use 0.05 for alpha.

An accounting department in an organization rounds to the nearest dollar. Assume the error in rounding follows uniform distribution on [-0.5, 0.5]. Estimate the probability that the total error in 192 entries is more than $1.

Find an equation for the parabola that has its vertex at the origin and satisfies the given condition. Directrix X = -4

find the area between f(x)= 3x+10 and g(x)= 5x, from x=0 to x=6. Also find where the two functions intersect. Be sure to graph this one with a y-axis of +30. THE AREA IS IN TWO PIECES

Simplify aned - 2 care with positive exponents m 7 x - Gy

Check here for instructional material to complete this problem Evaluate F = for sy - 5.95 and s2 - 5.49. F =(Round to two decimal places as needed.) Next

(1 Opera\") Find the Taylor series of the given function centered at the indicated point: x3+x2+x+1 at a=1

(10 points) Find the Taylor series of the given function centered at the indicated point 1

Josh wants to know how man school pr did a wunver and found that: 25 turtents rio 1 sport . 32 vudents do ] iports . I students do d sports What is the average number of sports practhed by a student in Josh's school, to the nearest y numberT

if a=0.05, the critical value for the chi square test satisfy x^2 is a. 10.21 b. 12.42 c. 5.14 d.5.99 e.4.61

= Homework: Homework 2 Question 5, 14.3.47 HW Score: 80%, 8 of 10 points Save Part 3 of 4 Points: 1 of 2 Find all the second-order partial derivatives of the following function. w = 8x2 tan (2x y) = 5184x18y2 sec 2 (2x9y) tan (2x9y) + 1728x9y sec 2 (2x9y) + 16 tan (2x y) ox aw = 64x20 sec 2 (2x y) tan (2x9y) ay aw dydx

1. (3 points) 2. (3 points) Evaluate Evaluate 4eXdx. In 3

Do survey participants who have different IT roles (Q1) differ in terms of dimensions of image (variables Q8-Q17) when these variables are considered simultaneously. IBM SPSS, BUS614.

Question

a) Given the matrices: 0 0 0 0 2 A= 20 2 B=1 10 C= 4 -1 0 -3 3 1 3 -1 -4 5 0 51 1 U D = 1 2 02 E = -5 0 -1 0 4 F =(5 0 1 -2) Find: i) BA (10 marks) ii) DFT (10 marks) iii) E-1 (10 marks)

Find surface integral (arcsin (y2 - 2) + x2) dydz + (xy - z'cos (extz ) ) dzdx + 2" dxdy where S is the outside of the surface bounded by the surfaces z =4 - v x2 + y',z= 0

Show every step MATH 146, SPRING 2022, EXAM 2 NAME 3. (4 pts) X-Data DVD's in lots of 50 are defective at a rate of 0.5%. In a batch of 50, what's the probability of getting at least one defective disk? (Round final answer to 3 decimal places)

Find the following derivative. d (In Isinxl) dx d (In dx

A single six-sided die is tossed. List the simple events in C . (Enter your answers as a comma-separated list. If C contains no simple events, enter NONE.) C : observe a number greater than 1 C =

2. Consider the simple linear regression 91': 50 +51% +5e: (a) Derive the weighted least squares estimators for 50 and 5'1

calculate the gross autopsy rate based on the following statistics. In one month period, a 300-bed hospital with 20 bassinets reported 18 inpatient deaths. The medical staff performed 6 autopsies. Report the rate as a percentage rounded to the nearest tenth

Time left 0:55:04 Question 7 Not yet answered Marked out of 5.00 {7 Flag question [5 points] Let X be a discrete random variable such that it can only take on the values 0, 1, 2. If P(X=O) = 0.18 and P(X=1) = 0.06, nd P(X=2). O a. None of the answers. O b. P(X=2) = 0.79 O c. P(X=2)= 0.24 Q d. P(X=2) = 0.76

If f(x)f(x) is a linear function, f(4)=4f(-4)=-4, and f(1)=2f(1)=-2, find an equation for f(x)f(x).

Learning Objective 3d Rubric: "1" correctly evaluate the indefinite integral. "0" incomplete work or incorrect answers. Evaluate the following integral. ex cos ex + n) dx N

Use the continuous compound interest formula to find the indicated value. A = $19,751; P =$14,400; t= 48 months; r =? r= % (Round to three decimal places as needed.)

2. A particle is moving along the x axis with position x(t) = 33' + 31' + t 1 a. What is the velocity of the particle when t = 3 ? b- What is the acceleration of the particle? c- What is the displacement of the particle at t=2

Question 10 [1 point] if 2000 people wrote a college entrance umm, and 305 scored lower than Peter what was Peter's percentile rank

6 - (6 points) Write a truth table for the proposition: -(pAq)v(-p+-r) . Consider a "1" to be true and a "0" to be false. P r PAq -(qAr) or -(paq)v( -p+ r) 1 1 1 1 1 0 1 0 1 0 0 0 1 0 1 0 0 0 0 0 0

Score 19.3345 922 answered Question 12 Use the spinner below. P(multiple of 12)

A manufacturing machine has an 8% defect rate. If 4 items are chosen at random, what is the probability that at least one will have a defect?

the local nursing home requires that each unit has a ratio of three RPN for every six PSWs on shift. What percentage of the staff are required to be RPNS? Please round answer to the nearest whole number

Research work: Definition of Statistics and Probabilities Definition of basic terms and give examples: 1.Bivariate data 2.Univariate data 3.Scatter Plot 4.Correlation analysis 5.Pearson Product-moment correlation 6.Regression analysis 7.Independent variable 8.Dependent variables 9.Line of best fit 10. Regression line

3.] Why is question order and asking questions in an unbiased way important? Why should you pay attention to what organization is conducting the poll

Which quantity decreases as the sample size increases? the population mean O the standard error the standard deviation O the mean of all the sample means

I need to find the median and standard deviation of this data set 41,48,50,50,54,57 The question also asks "which numbers in the list are within 0.5 Standard deviations of the average" which I am not sure how to answer.

Heights of adult males are normallyI distributed. lfa large sample of heights of adult males is randomly selected and the heights are illustrated in a histogram, what is the shape of that histogram? Choose the correct answer below. Bell-shaped Uniform Longer tail to the right 0000 Longer tail to the left

Time left 0:54:59 Question 8 Not yet answered Marked out of 5.00 V Flag question [5 points] Let X be a discrete random variable with standard deviation = 45. Find the variance of X o a. V(X) = 90 O b. vac) = 45 o c. V(X) = 2025 Q d. None of the answers

5. [-/4 Points] DETAILS DEVORESTAT9 6.2.020. A diagnostic test for a certain dis (a) Derive the maximum likelihood estimator of p. If n - 25 and x - 5, what is the estimate? b) Is the estimator of part (a) unblaze O Yes O No c) if n - 25 and x - 5, what is the

A number cube with faces labeled from 1 to 6 will be rolled once. The number rolled will be recorded as the outcome. Give the sample space describing all possible outcomes. Then give all of the outcomes for the event of rolling a number from 2 to 4. If there is more than one element in the set, separate them with commas.

Calculate z0.02 Calculate Zo.02. O 98% 99% 99.73% 1.645 2.0537

Calculat,e zo.02 9900 99.7300 1.645 20537

Express the confidence interval 517.337.7 in the form of a trilinear inequality. ______ <

Time left 0:57:37 Question 8 Not complete Let Xbe a discrete random variable with standard deviation = 5. What is the variance of X. (5 Points) Marked out of 5.00 Flag question O a. 10 O b. None of these O c. 5 O d. 20 O e. 25 Check

Suppose the random variable X follows a normal distribution with mean =109=109and standard deviation =25=25. Calculate each of the following. In each case, round your response toat least2 decimal places. a) Calculate the location of the 83 rd percentile on the distribution of X . b) Calculate the location of the 38 th percentile on the

Find a short video or article about the use of statistics in psychology. Try to provide a explanation for no more than Seventy-five (75) words.

The amount of weight on an ACME tractor trailer is known to have a normal distribution with mean 9.5 tons and standard deviation 0.5 tons. What is the probability that the weight on a randomly chosen truck exceeds 10.3 tons?

The formula for the nth square number is S, = n. Use the formula to find the 11th square number. The 11th square number is (Simplify your answer.)

The mathematics department at one university reports 30% as the failure rate for College Algebra. One student claims that the failure rate for College Algebra is more than 30%. The student conducts a hypothesis test and rejects the null hypothesis. Assume that in reality, the failure rate for College Algebra is 30%. Was an error made? If so, what

Can someone please explain the Mathematics of Irrational Numbers, with examples, significant discoveries, theories, and usage? And where you can find these sources.

Evaluate the following formula for p, = 0.2, p2 = 0.7, P1 - P2 = 0, p= 0.214999, q = 0.785001, n, =53, and n, = 93. (P1 - P2 ) - (P1 - P2 ) Z = p . q p . q Z = (Round to two decimal places as needed.)

hat is the probability that the random variable takes a value between -1 and 2

#6 : A fair min is tossed repeatedly. Suppose heads appears for the rst time after X tosses and tails appears for the rst time after Y tosses. a} Find the joint probability distribution for X and Y (are X and Y discrete or continuous ?) 1)) Find the marginal distributions for X and Y

Read, analyze and solve for the following. Express your answers as decimals rounded off to two decimal places. For the volume, multiply it to the value of Pi (3.14) to get the final answer. Question: Find the volume of the solid obtained by rotating the region bounded by y= x^2, y = 4 and the y - axis about the y-axis.

For a confidence level of 80% with a sample size of 19, find the critical t value. _________

Find an equation for the line tangent to the graph of Vx f (20 ) = 8x + 5 at the point (3, f(3)). y =

QUESTION 12 The mean of 5, 10. 26, 30, 45. 32, x. 20 is 25 where x is constants. Find the value of x. (3 marks) 1 I30} Blank 1 Click Save and Submit to save and submit. Click Save All Answers to save all answers

dx d (10 pts) A rectangle has sides of length x and y, which change at the rates E = 2 and 7): = 1. If x = 3 and y = 4, nd the rate of change of the length of a diagonal of the rectangle

Suppose x is a normal random variable with u= 2 and o=2. What is the probability that the absolute value of x is at least 4.9? a) 0.1212 b) 0.0970 O c) 0.0784 O d) 0.0614 O e) 0.0738

Part C: Thinking Skills 1. State the function f(x) for the followings. T (a) f'x = -5 lim {3(x+h) - 3x} / h h -> o (b) fx = lim {9(x+h) - 9x} / h h->0

THE WEAROUT MILEAGE OF A CERTAIN TIRE IS NORMALLY DISTRIBUTED WITH A MEAN OF 35,000 AND A STANDARD DEVIATION OF 2,500 MILES. a) DETERMINE THE PERCENT OF TIRES THAT WILL LAST BETWEEN 30,750 MILES AND 38,300 MILES. b) DETERMINE THE PERCENT OF TIRES THAT WILL LAST AT LEAST 39,000 MILES. c) IF THE MANUFACTURER GUARANTEES THE TIRES TO LAST AT LEAST

6. Let X be a rv with cdf 0 for x

6. Let X be a rv with cdf 0 x 8 for x 0 for 0 x 1 forlsx 2 or 2 s x 3 4 12 1 for x 3 a) b) c) Is the random variable of the continuous type Why or why not Find Pr(ls XS2). Find

Question 13 (3 marks). Let X ~ Gamma(8, 0.48). To three decimal places, the value of E (X) is 0 0.48 0 8.48 0 3.84 0 30.72 0 1.843 0 8 0 14.746

2. (10 marks) Let X denote the size of a surgical claim and Y denote the size of the associated hospital claim. An actuary is using a model in which E(X) = 5, E (X2) = 27.4, E(Y) = 7, E (Y2) = 51.4, Var(X + Y) = 8. The actuary had assumed that E(X | Y) = aY + b. Determine the values of a and b

Effects of Chronic Health Conditions, Demographics, and their Medicaid status on Residents Falls How I should write literature review for this topic

In 1980, women who were under 50 years old had a mean body weight of 145 pounds, with a standard deviation of 20 pounds. You are required to test whether the mean body weigh/t in the population then and now differ. State both the null and the alternative hypotheses. In 1970, adults who were 18 years or more had a mean systolic blood pressure (SBP)

A single six-sided die is tossed. List the simple events in D . (Enter your answers as a comma-separated list. If D contains no simple events, enter NONE.) D : observe a number less than 4 D =

1. En un bosque hiky 20 xscxs de anteojcxs dc los cuales 5 son capturados, marcados y dcjadcxs nucvamcntc cn libertad. Unas scmanas Ills tardc, 1 dc 20 Osos son capturados. Calcular la probabilidad de quc a 10 rns dos dc los (Isos capturados estn marcados.

Please answer the following essay question: Explain the role of ^ and * in the Poisson probability formula. Answer in paragraph form using complete sentences and include any calculations, graphs, and labeled diagrams as appropriate. BIUSX X TX A- A- (> Source

Describe the rule of adding probabilities and multiplication rules and explain when probabilities are used, with examples and references.

Question 19 A particular fruit's weights are normally distributed, with a mean of 330 grams and a standard deviation of 14 grams. If you pick one fruit at random, what is the probability that it will weigh between 286 grams and 376 grams Question Help: Video Message instructor Submit

QUESTION 2.5 Customers of an internet service provider initiate new accounts at the average rate of 15 accounts per day. (a) What is the probability that more than 10 new accounts will be initiated today? (b) What is the probability that more than 16 accounts will be initiated within 2 days

Time left 0:55:12 Question 5 Not yet answered Marked out of 5.00 V Flag question [5 points] Let X be a discrete random variable with variance = 18. Find the variance of a linear function aX+b, if a = 18 and b = 40. O a. None of the answers. O b. V(aX+b) = 28800 O c. V(aX+b) = 5832 Q d. V(aX+b) = 364

Read the article entitled, "Developing a New Care Pathway for Transient Ischemic Attack at a Community Medical Center. link is under: https://go.gale.com/ps/i.do?id=GALE%7CA472847177&sid=googleScholar&v=2.1&it=r&linkaccess=abs&issn=23744030&p=AONE&sw=w&userGroupName=nysl_oweb Select two concepts that you think are important. Explain how those

Mean= 50 Standard Deviation= 7

50 54 70 P(54 s X 70) O (Round to four decimal places as needed.) 5054 70

Find the frequency of the first class (293-320) by counting the values that lie within the limits of the first class. How do I find the values that lie within the limits of the first class (293-320)? I have no clue how to find the values

Help please use white paper IF HANDWRITTEN and make the solution readable Thank you I WILL GIVE UPVOTE. FINAL ANSWER MUST.BE TYPEWRITTEN for better understanding. Find the values of the following: a. to.10.8 b. to.05,12 C. 10.01,15 d. Xo.10,8 ,2 e. Xo.05.12 f. Xo.01.15

9.78 An urn contains 10 blue balls and 8 red balls. We draw balls from this urn one by one with replacement. What is the probability that we have to draw at least 6 balls before we see at least one ball of each color?

In a class of 26 students, 25 of them took an exam in class and 1 student took a make-up exam the following day. The professor graded the first batch of 25 exams and found an average score of 81 points with a standard deviation of 7 points. The student who took the make-up the following day scored 60 points on the exam. What is the new average?

"For the last ten years, I've used smaller and smaller amounts of pesticide. and each year I've had fewer bugs and larger yields." The correlation between amounts if pesticide and number of bugs is

5.43 Suppose that X1, . .., Xn are iid from a distribution with mean & and variance o2, n is large and T = EX. Obtain an approximation to P(T > nut vno)

The average age for women having their last child is age 38 with a standard deviation of 10 years. What is the probability that a sample of 50 women will have a mean age of less than 40 for having their last child? I need complete working of the answer

Over the past eight years, Sky Western Airlines has increased their sale of seats from 61,000 to 1,440,000. Use the geometric mean to compute the average annual growth rate for Sky Western sales. a. 48.47% b. 34.6% 8 c. 23.2% d. 66.1% e. 28.4% A data set contains only two values. One of the two values is 64. If the MAD is 9, what is the standard

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