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mathematics
survey of mathematics

Questions and Answers of Survey of Mathematics

Determine the range and standard deviation of the set of data. When appropriate, round standard deviations to the nearest hundredth.7, 9, 7, 9, 9, 10, 12
Determine the range and standard deviation of the set of data. When appropriate, round standard deviations to the nearest hundredth.9, 9, 9, 9, 9, 9, 9
Determine the range and standard deviation of the set of data. When appropriate, round standard deviations to the nearest hundredth.4, 8, 9, 11, 13, 15
Determine the range and standard deviation of the set of data. When appropriate, round standard deviations to the nearest hundredth.5, 9, 10, 14, 2, 11, 13, 14, 8, 4
Determine the range and standard deviation of the set of data. When appropriate, round standard deviations to the nearest hundredth.120, 121, 122, 123, 124, 125, 126
Determine the range and standard deviation of the set of data. When appropriate, round standard deviations to the nearest hundredth.10, 10, 14, 16, 8, 8
Determine the range and standard deviation of the set of data. When appropriate, round standard deviations to the nearest hundredth.9, 7, 4, 10, 15
Matthew purchased some items at Staples each day for five days. The mode of the number of items Matthew purchased is higher than the median of the number of items he purchased. The median of the
In a four-point grade system, an A corresponds to 4.0 points, a B corresponds to 3.0 points, a C corresponds to 2.0 points, and a D corresponds to 1.0 points. No points are awarded for an F. Last
Suppose that your final grade for a course is determined by a midterm exam and a final exam. The midterm exam is worth 40% of your grade, and the final exam is worth 60%. If your midterm exam grade
The following table gives the distribution of annual salaries for employees at Kulzer’s Home Improvement.Annual Salary . . . . . . . . . . . . . . . . Number Receiving Salary$100,000 . . . . . . .
The tables below compare the batting performances for selected years for two well-known former baseball players, Babe Ruth and Mickey Mantle.(a) For each player, compute the batting average percent
Consider the following five sets of values.(i) 5 6 7 7 8 9 14(ii) 3 6 8 9(iii) 1 1 1 2 5(iv) 6 8 9 12
The following statistics represent weekly salaries at the Midtown Construction Company:(a) What is the most common salary? (b) What salary did half the employees’ salaries surpass? (c)
Jonathan took an admission test for the University of California and scored in the 85th percentile. The following year, Jonathan’s sister Kendra took a similar admission test for the University of
Give the names of two other statistics that have the same value as the 50th percentile.
The prices of the 20 top-rated top-loading washing machines, as reported in the August, 2014, issue of Consumer Reports, are as follows:Determine(a) Q2(b) Q1(c) Q3 $ 1200 $950 $1100 $600 $750
The prices of the 19 top-rated coffee makers, as reported in the September, 2014, issue of Consumer Re-ports, are as follows:Determine(a) Q2(b) Q1(c) Q3 $180 $160 $300 $170 $170 $150 $130 $150
A union leader is told that, when all workers’ salaries are considered, the first quartile is $27,750. Explain what that means.
When a national sample of heights of kindergarten children was taken, Kevin was told that he was in the 35th percentile. Explain what that means.
Josie scored in the 73rd percentile on the verbal part of her College Board test. What does that mean?
For any set of data, what must be done to the data before percentiles can be determined?
The Taylors have recorded their weekly grocery expenses for the past 12 weeks and determined that the mean weekly expense was $85.20. Later Mrs. Taylor discovered that 1 week’s expense of $74 was
Is it possible to construct a set of six different pieces of data such that by changing only one piece of data you cause the mean, median, mode, and midrange to change? Explain.
Consider the set of data 1, 1, 1, 2, 2, 2. If one 2 is changed to a 3, which of the following will change: mean, median, mode, midrange?
Construct a set of six pieces of data such that if only one piece of data is changed, the mean, median, and mode will all change.
Which of the measures of central tendency must be an actual piece of data in the distribution?
A mean average of 60 on seven exams is needed to pass a course. On her first six exams, Sheryl received grades of 52, 72, 80, 65, 57, and 69.(a) What grade must she receive on her last exam to pass
A mean average of 80 or greater for five exams is needed for a final grade of B in a course. Jorge’s first four exam grades are 73, 69, 85, and 80. What grade does Jorge need on the fifth exam to
Construct a set of six pieces of data with a mean of 84 and where no two pieces of data are the same.(a) The mean number of visitors per day.(b) The median number of visitors per day.(c) The mode
Construct a set of six pieces of data with a mean of 84 and where no two pieces of data are the same.
Construct a set of six pieces of data with a mean, median, and midrange of 75 and where no two pieces of data are the same.
Construct a set of five pieces of data in which the mode has a lower value than the median and the median has a lower value than the mean.
Jeremy’s mean average on six exams is 92. Determine the sum of his scores.
Malcolm’s mean average on five exams is 81. Determine the sum of his scores.
In what month do people take the least number of daily vitamins?
Count the number of F’s in the sentence at the bottom of the Recreational Mathematics. There are 6 F’s.
A sample of 600 people were asked which one automobile accessory they would most prefer to have on a family road trip. The following circle graph shows the percentage of respondents that
The 2014 cost for Virginia residents to attend the University of Virginia was $20,986. The circle graph below shows the percentage of that cost for tuition, room, board, and books/supplies. Determine
Use the frequency polygon below to answer the following questions.(a) How many families visited the San Diego Zoo four times? (b) How many families visited the San Diego Zoo at least six
Use the frequency polygon below to answer the following questions.(a) How many people sent five e-mail messages? (b) How many people sent six or fewer e-mail messages? (c) How many people
Use the histogram below to answer the following questions.(a) How many students were surveyed? (b) What are the lower and upper class limits of the first and second classes? (c) How many
Use the histogram below to answer the following questions.(a) How many homes were included in the survey? (b) In how many homes were four televisions observed? (c) What is the modal
The ages of the 44 presidents at their first inauguration (as of 2015) are as follows. (Grover Cleveland was elected as both the 22nd and the 24th president. His age at both of his inaugurations is
Starting salaries, in thousands of dollars, for social workers with a bachelor of science degree and no experience are shown for a random sample of 25 different social workers.(a) Construct a
The following table shows the sales of the 15 top-selling vehicles in the United States, in thousands of vehicles, for October, 2014.(a) Construct a frequency distribution with a first class of
Eighteen students in a geology class were asked how many college credits they had earned. The responses are as follows. Construct a stem-and-leaf display. 10 15 24 36 48 45 42 53 60 17 24 30 33 45 48
Twenty members of a health club who jog were asked how many miles they jog per week. The responses are as follows. Construct a stem-and-leaf display. For single digit data, use a stem of 0. 12 15 4 7
The data in the table indicate the cost of living in 2013, by state. The cost of living is a measure of the average price paid for housing, utilities, groceries, healthcare, transportation, and
The data in the table indicate the cost of living in 2013, by state. The cost of living is a measure of the average price paid for housing, utilities, groceries, healthcare, transportation, and
The data in the table indicate the cost of living in 2013, by state. The cost of living is a measure of the average price paid for housing, utilities, groceries, healthcare, transportation, and
The data in the table indicate the cost of living in 2013, by state. The cost of living is a measure of the average price paid for housing, utilities, groceries, healthcare, transportation, and
The data represent the approximate 2013 population, in hundreds of thousands of people, of the 20 most populous cities in the United States.Use these data to construct a frequency distribution with a
The data represent the approximate 2013 population, in hundreds of thousands of people, of the 20 most populous cities in the United States.Use these data to construct a frequency distribution with a
The data represent the approximate 2013 population, in hundreds of thousands of people, of the 20 most populous cities in the United States.Use these data to construct a frequency distribution with a
The data represent the approximate 2013 population, in hundreds of thousands of people, of the 20 most populous cities in the United States.Use these data to construct a frequency distribution with a
Use the data given in Table 12.1 to construct a frequency distribution with a first class (in thousands) of.Table 12.1:138−417. Circulation Newspaper (thousands) Wall Street 2379 Journal New York
Use the data given in Table 12.1 to construct a frequency distribution with a first class (in thousands) of.Table 12.1:138−587. Circulation Newspaper (thousands) Wall Street 2379 Journal New York
Use the data given in Table 12.1 to construct a frequency distribution with a first class (in thousands) of.Table 12.1:100−399. Circulation Newspaper (thousands) Wall Street 2379 Journal New York
Use the data given in Table 12.1 to construct a frequency distribution with a first class (in thousands) of.Table 12.1:100−299. Circulation Newspaper (thousands) Wall Street 2379 Journal New York
A hot dog vendor is interested in the number of hot dogs he sells each day at his hot dog cart. The number of hot dogs sold is indicated at the top of next column for 32 consecutive days. Construct a
Valencia College is planning to expand its library. Forty students were asked how many times they visited the library during the previous semester. Their responses are given below. Construct a
Use the frequency distribution to determine(a) The total number of observations.(b) The width of each class.(c) The midpoint of the second class.(d) The modal class (or classes).(e) The class limits
Use the frequency distribution to determine(a) The total number of observations.(b) The width of each class.(c) The midpoint of the second class.(d) The modal class (or classes).(e) The class limits
Fill in the blank with an appropriate word, phrase, or symbol(s).Graphs that are often used to compare parts of one or more components of the whole to the whole are called pie charts or ____________
Fill in the blank with an appropriate word, phrase, or symbol(s).In a stem-and-leaf display (a) The left group of digits is called the ____________ . (b) The right group of digits is
Determine the equation of the line of best fit from the data indicated in the exercise. Round both m and b to the nearest hundredth.Exercise 25.Data from exercise 25: x . . . . . . . . . y100 .
Determine the equation of the line of best fit from the data indicated in the exercise. Round both m and b to the nearest hundredth.Exercise 24.Data from exercise 24:x . . . . . . . . . y12 . . . . .
Determine the equation of the line of best fit from the data indicated in the exercise. Round both m and b to the nearest hundredth.Exercise 23.Data from exercise 23:x . . . . . . . . . y5.3 . . . .
Determine the equation of the line of best fit from the data indicated in the exercise. Round both m and b to the nearest hundredth.Exercise 22.Data from exercise 22.x . . . . . . . . . y90 . . . . .
Determine the equation of the line of best fit from the data indicated in the exercise. Round both m and b to the nearest hundredth.Exercise 21.Data from exercise 21:x . . . . . . . . y23 . . . . . .
Determine the equation of the line of best fit from the data indicated in the exercise. Round both m and b to the nearest hundredth.Exercise 20.Data from exercise 20:x . . . . . . . . y8 . . . . . .
Determine the equation of the line of best fit from the data indicated in the exercise. Round both m and b to the nearest hundredth.Exercise 19.Data from exercise 19:x . . . . . . . . y4 . . . . . .
(a) Draw a scatter diagram.(b) Determine the value of r, rounded to the nearest thousandth.(c) Determine whether a correlation exists at α = 0.05.(d) Determine whether a correlation exists at a =
(a) Draw a scatter diagram.(b) Determine the value of r, rounded to the nearest thousandth.(c) Determine whether a correlation exists at α = 0.05.(d) Determine whether a correlation exists at a =
(a) Draw a scatter diagram.(b) Determine the value of r, rounded to the nearest thousandth.(c) Determine whether a correlation exists at α = 0.05.(d) Determine whether a correlation exists at a =
(a) Draw a scatter diagram.(b) Determine the value of r, rounded to the nearest thousandth.(c) Determine whether a correlation exists at α = 0.05.(d) Determine whether a correlation exists at a =
(a) Draw a scatter diagram.(b) Determine the value of r, rounded to the nearest thousandth.(c) Determine whether a correlation exists at α = 0.05.(d) Determine whether a correlation exists at a =
(a) Draw a scatter diagram.(b) Determine the value of r, rounded to the nearest thousandth.(c) Determine whether a correlation exists at α = 0.05.(d) Determine whether a correlation exists at a =
(a) Draw a scatter diagram.(b) Determine the value of r, rounded to the nearest thousandth.(c) Determine whether a correlation exists at α = 0.05.(d) Determine whether a correlation exists at a =
(a) Draw a scatter diagram.(b) Determine the value of r, rounded to the nearest thousandth.(c) Determine whether a correlation exists at α = 0.05.(d) Determine whether a correlation exists at a =
Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use Table 12.9 for the specified sample size and level of significance to determine whether a linear
Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use Table 12.9 for the specified sample size and level of significance to determine whether a linear
Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use Table 12.9 for the specified sample size and level of significance to determine whether a linear
Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use Table 12.9 for the specified sample size and level of significance to determine whether a linear
Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use Table 12.9 for the specified sample size and level of significance to determine whether a linear
Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use Table 12.9 for the specified sample size and level of significance to determine whether a linear
Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use Table 12.9 for the specified sample size and level of significance to determine whether a linear
Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use Table 12.9 for the specified sample size and level of significance to determine whether a linear
Indicate if you believe that a correlation exists between the quantities on the horizontal and vertical axes. If so, indicate if you believe that the correlation is a strong positive correlation, a
Indicate if you believe that a correlation exists between the quantities on the horizontal and vertical axes. If so, indicate if you believe that the correlation is a strong positive correlation, a
Indicate if you believe that a correlation exists between the quantities on the horizontal and vertical axes. If so, indicate if you believe that the correlation is a strong positive correlation, a
Indicate if you believe that a correlation exists between the quantities on the horizontal and vertical axes. If so, indicate if you believe that the correlation is a strong positive correlation, a
Fill in the blank with an appropriate word, phrase, or symbol(s).A plot of data points is called a(n) ______________ diagram.
Fill in the blank with an appropriate word, phrase, or symbol(s).A sample that consists of a random selection of groups or units is called a(n) __________ sample.
Fill in the blank with an appropriate word, phrase, or symbol(s).If a sample is drawn in such a way that each time an item is selected, each item in the population has an equal chance of being drawn,
General Mills is testing 12 new cereals for possible production. They are testing 3 oat cereals, 4 wheat cereals, and 5 rice cereals. If each of the 12 cereals has the same chance of being produced,
The top 10 employment websites with the highest number of monthly visitors, in millions, in October, 2014, are listed on the table.Website . . . . . . . . . . . . . . Number of Visitors
Bob’s monthly living expenses for 1 year are as follows:Determine, to the nearest tenth, the(a) Mean. (b) Median.(c) Mode. (d) Midrange. $1050 $1570 $1200 $1600 2000 1450 1050 1550 1800
The 10 countries with the highest per person consumption of chocolate in 2012 are listed below.Country . . . . . . . . . . . . . Consumption (kg per person)Switzerland . . . . . . . . . . . . . . . .

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