Deck 2: Organizing and Summarizing Data

Question 1

Student Council President What percent of the votes did Jim and Ann receive together?

A) 39%
B) 61%
C) 17%
D) 22%

Answer 1

A

Question 2

The Excel frequency bar graph below describes the employment status of a random sample of U.S. adults.What is the percentage of those having no job?

A) 15%
B) 20%
C) 40%
D) cannot determine

Answer 2

A

Question 3

Scott Tarnowski owns a pet grooming shop. His prices for grooming dogs are based on the size of the dog. Hisrecords from last year are summarized below. Construct a frequency distribution and a relative frequencydistribution. Show the percentage represented by each relative frequency.

Answer 3

Question 4

The bar graph below shows the political party affiliation of 1000 registered U.S. voters. What percentage of the1000 registered U.S. voters belonged to one of the traditional two parties (Democratic and Republican)?

A) 75%
B) 40%
C) 35%
D) 25%

Question 5

The results of a survey about a recent judicial appointment are given in the table below. Construct a relativefrequency distribution.

Question 6

The preschool children at Elmwood Elementary School were asked to name their favorite color. The results arelisted below. Construct a frequency distribution and a relative frequency distribution.

Question 7

During which week was the fewest number of tickets sold?

A) week 2
B) week 4
C) week 6
D) week 5

Question 8

The grade point averages for 40 evening students are listed below. Construct a frequency bar graph and arelative frequency bar graph.

Question 9

The local police, using radar, checked the speeds (in mph) of 30 motorists in a construction area. The results arelisted below. Construct a frequency bar graph and a relative frequency bar graph.

Question 10

True or False: Relative frequency is the proportion (or percent) of observations within a category and is foundusing the formula: relative frequency = $=\frac{\text { sum of all frequencies }}{\text { frequency }} .$

Question 11

Approximately how many tickets were sold during week 5?

A) 40 tickets
B) 19 tickets
C) 46 tickets
D) 11 tickets

Question 12

In what quarter was the revenue the greatest for Year 2?

A) fourth quarter
B) first quarter
C) second quarter
D) third quarter

Question 13

In what quarter was the revenue the least for Year 2?

A) second quarter
B) first quarter
C) fourth quarter
D) third quarter

Question 14

Retailers are always interested in determining why a customer selected their store to make a purchase. Asporting goods retailer conducted a customer survey to determine why its customers shopped at the store. Theresults are shown below. What percentage of the customers responded that the merchandise was the reasonthey shopped at the store? Round to the nearest whole percent

A) 43%
B) 30%
C) 50%
D) 29%

Question 15

Student Council President 400 total votesWho got the fewest votes?

A) Ann
B) Ben
C) Matt
D) Ted

Question 16

True or False: The sum of all the relative frequencies of a distribution will always add up to 1.

Question 17

The payroll amounts for 26 major-league baseball teams are shown below. Aprroximately what percentage ofthe payrolls were in the $30-$40 million range? Round to the nearest whole percent.

A) 31%
B) 8%
C) 42%
D) 19%

Question 18

During which week was the most number of tickets sold?

A) week 4
B) week 5
C) week 2
D) week 1

Question 19

Student Council President 700 total votesWho got the most votes?

A) Jim
B) Matt
C) Ming
D) Ann

Question 20

What was the revenue for the first quarter of Year 1?

A) $35 million
B) $7 million
C) $20 million
D) $4 million

Question 21

A random sample of 30 high school students is selected. Each student is asked how much time he or she spenton the Internet during the previous week. The following times (in hours) are recorded: Construct a frequency histogram for this data.

Question 22

Find the class width for the frequency table below. $\begin{array}{cc}\hline\text { Class } & \text { Frequency } \\\hline 31-32 & 3 \\33-34 & 1 \\35-36 & 3 \\37-38 & 6 \\39-40 & 2\\\hline\end{array}$

A) 2
B) 1
C) 1.5
D) 2.5

Question 23

The June precipitation amounts (in inches) for 40 cites are listed below. Construct a frequency distribution anda relative frequency distribution using eight classes.

Question 24

A sample of 25 community service projects is obtained and the scores are recorded. The results are shownbelow. Construct a frequency histogram for this data. 3 Organize continuous data in tables.

Question 25

Scott Tarnowski owns a pet grooming shop. His prices for grooming dogs are based on the size of the dog. Hisrecords from last year are summarized below. Round percents to whole numbers.

Question 26

The class width is the difference between

A) Two successive lower class limits
B) The high and the low data values
C) The upper class limit and the lower class limit of a class
D) The largest frequency and the smallest frequency

Question 27

The March utility bills (in dollars) of 30 homeowners are listed below. Construct a frequency distribution and arelative frequency distribution using six classes. Provide an appropriate response.

Question 28

A study was conducted to determine how people get jobs. Four hundred subjects were randomly selected andthe results are listed below. Round percents to whole numbers.

Question 29

A random sample of 30 high school students is selected. Each student is asked how much time he or she spenton the Internet during the previous week. The following times (in hours) are obtained: Construct a frequency distribution for the data.

Question 30

Use the following frequency distribution to determine the class limits of the third class.

A) lower limit: 15; upper limit: 17
B) lower limit: 14.5; upper limit: 17.5
C) lower limit: 15; upper limit: 18
D) lower limit: 14; upper limit: 18

Question 31

The weights (in pounds) of babies born at St Maryʹs hospital last month are summarized in the table.

A) 0.9 lb
B) 0.8 lb
C) 0.95 lb
D) 0.85 lb

Question 32

A two-pound bag of assorted candy contained 100 caramels, 83 mint patties, 93 chocolate squares, 80 nutclusters, and 79 peanut butter taffy pieces. To create a pie chart of this data, the angle for the slice representingeach candy type must be computed. What is the degree measure of the slice representing the mint pattiesrounded to the nearest degree?

A) 69°
B) 19°
C) 5°
D) 52°

Question 33

Determine the number of classes in the frequency table below. $\begin{array}{cc}\hline\text { Class } & \text { Frequency } \\\hline 38-39 & 7 \\40-41 & 2 \\42-43 & 6 \\44-45 & 4 \\46-47 & 1\\\hline \end{array}$

A) 5
B) 6
C) 20
D) 2

Question 34

The weights (in pounds) of babies born at St Maryʹs hospital last month are summarized in the table. Find the class limits for the second class.

A) lower limit: 6.1; upper limit: 7.1
B) lower limit: 6.1; upper limit: 7.2
C) lower limit: 6.05; upper limit:7.15
D) lower limit: 6; upper limit: 7.2

Question 35

The commute times (in minutes) of 30 executives are listed below. Construct a frequency distribution and arelative frequency distribution using five classes. Round relative frequency values to three decimal places.

Question 36

A researcher records the number of employees of each of the IT companies in the town of Westmoore. Theresults are summarized in the table. Find the class width.

A) 750
B) 3749
C) 749.5
D) 5

Question 37

The table below summarizes the weights of the almonds (in grams) in a one-pound bag. What is the classwidth?

A) 0.06
B) 0.059
C) 0.408
D) 0.4

Question 38

A researcher records the number of employees of each of the IT companies in the town of Westmoore. Theresults are summarized in the table. Find the class limits of the third class.

A) lower limit: 800; upper limit: 1199
B) lower limit: 800; upper limit: 1200
C) lower limit: 799.5; upper limit: 1199.5
D) lower limit: 799; upper limit: 1200

Question 39

For the data below, construct a frequency distribution and a relative frequency distribution.

Question 40

A sample of 25 service project scores is taken and is recorded below. Construct a frequency distribution for thisdata. 2 Construct histograms of discrete data.

Question 41

What is the difference between a bar chart and a histogram?

A) The bars on a bar chart do not touch while the bars of a histogram do touch.
B) The bars in a bar chart may be of various widths while the bars of a histogram are all the same width.
C) The bars in a bar chart are all the same width while the bars of a histogram may be of various widths.
D) There is no difference between these two graphical displays.

Question 42

A) skewed to the right
B) skewed to the left
C) uniform
D) bell shaped

Question 43

Is either histogram symmetric?

A) Neither is symmetric.
B) The first is symmetric, but the second is not symmetric.
C) The second is symmetric, but the first is not symmetric.
D) Both are symmetric.

Question 44

The heights (in inches) of 30 mechanics are listed below. Construct a stem-and-leaf plot for the data.

Question 45

For the data below, construct a frequency histogram and a relative frequency histogram.

Question 46

The local police, using radar, checked the speeds (in mph) of 30 motorists at a busy intersection. The results arelisted below. Construct a dot plot for the data.

Question 47

The data set: weekly grocery bills (in dollars) for 20 randomly selected households

A) bell shaped
B) uniform
C) skewed to the left
D) skewed to the right

Question 48

For the stem-and-leaf plot below, what are the maximum and minimum entries?

A) max: 49; min: 10
B) max: 38; min: 7
C) max: 47; min: 15
D) max: 40; min: 10

Question 49

The 30 students in Mrs Harrisonʹs literature class were asked how many cousins they had. The results areshown below. Create a frequency histogram for the data using a class width of 2.

Question 50

A sample of 15 Girl Scouts was selected and their weights (in pounds) were recorded. The results are listedbelow. Construct a frequency histogram for the data using a class width of 10 and using 95 as the lower limitof the first class.

Question 51

The number of home runs that Mark McGwire hit in the first 13 years of his major league baseball career arelisted below. (Source: Major League Handbook) Construct a stem-and-leaf plot for this data.

Question 52

A) skewed to the left
B) skewed to the right
C) uniform
D) bell shaped

Question 53

The numbers of runs batted in by Mark McLemore in the first 13 years of his major league baseball career arelisted below. (Source: Major League Handbook) Construct a stem-and-leaf plot for this data.

Question 54

The 30 students in Mrs Harrisonʹs literature class were asked how many cousins they had. The results areshown below. Construct a relative-frequency histogram using a class width of 2.

Question 55

Question 56

The scores for an economics test are listed below. Create a stem-and-leaf plot for the data. 6 Draw dot plots.

Question 57

The data set: ages of dishwashers (in years) in 20 randomly selected households

A) bell shaped
B) uniform
C) skewed to the left
D) skewed to the right

Question 58

The heights (in inches) of 30 mechanics are listed below. Construct a dot plot for the data. 7 Identify the shape of a distribution.

Question 59

The data set: Pick Three Lottery Outcomes for 10 Consecutive Weeks

A) uniform
B) bell shaped
C) skewed to the left
D) skewed to the right

Question 60

The March utility bills (in dollars) of 30 homeowners are listed below. Construct a stem-and-leaf plot for thedata.

Question 61

The grade point averages for 40 evening students are listed below. Construct a frequency polygon using eightclasses.

Question 62

The class midpoint can be determined by adding to the lower class limit one-half of the class width.

Question 63

Women were allowed to enter the Boston Marathon for the first time in 1972. Listed below are the winningwomenʹs times (in minutes) for the first 10 years. 2.4 Graphical Misrepresentations of Data1 Describe what can make a graph misleading or deceptive.

Question 64

The local police, using radar, checked the speeds (in mph) of 30 motorists on a rural road. The results are listedbelow. Construct a relative frequency ogive using six classes.

Question 65

A transportation engineer wishes to use the following data to illustrate the number of deaths from the collisionof passenger cars with motorcycles on a particular highway.

Question 66

The grade point averages for 40 evening students are listed below. Construct a frequency ogive usingeight classes.

Question 67

Question 68

An ogive is a graph that represents cumulative frequencies or cumulative relative frequencies. The pointslabeled on the horizontal axis are the

A) Upper class limits
B) Lower class limits
C) Midpoints
D) Frequencies

Question 69

The local police, using radar, checked the speeds (in mph) of 30 motorists in a construction area. The results arelisted below. Construct a frequency polygon using six classes and a class width of 3.

Question 70

The heights (in inches) of 30 lawyers are listed below. Construct a frequency ogive using five classes.

Question 71

The commute time (in minutes) of 30 executives are listed below. Construct a frequency distribution, a relativefrequency distribution, a cumulative frequency distribution, and a relative cumulative frequency distributionusing five classes.

Question 72

A) The vertical scale does not begin at zero.
B) The horizontal label is incomplete.
C) The trend is depicted in the wrong direction.
D) The graphic is not misleading.

Question 73

The grade point averages for 40 evening students are listed below. Construct a relative frequency ogive usingeight classes.

Question 74

The local police, using radar, checked the speeds (in mph) of 30 motorists on a rural road. The results are listedbelow. Construct a frequency ogive using six classes.

Question 75

The heights (in inches) of 30 lawyers are listed below. Construct a relative frequency ogive using five classes.

Question 76

The data below represent the consumption of high-energy drinks (in gallons) by adult Americans over anine-year period.

Question 77

The April precipitation amounts (in inches) for 40 cities are listed below. Construct a frequency distribution, arelative frequency distribution, a cumulative frequency distribution, and a relative cumulative frequencydistribution using eight classes.

Question 78

A frequency polygon always begins and ends with a frequency of zero.

Question 79

The volume of our sales has doubled!!!

A) The length of a side has doubled, but the area has been multiplied by 4.
B) The length of a side has doubled, but the area has been multiplied by 8.
C) The length of a side has doubled, but the area has been unchanged.
D) The graphic is not misleading.

Question 80

The local police, using radar, checked the speeds (in mph) of 30 motorists in a construction area. The results arelisted below. Construct a frequency distribution, a relative frequency distribution, a cumulative frequencydistribution, and a relative cumulative frequency distribution using six classes. 3 Construct frequency and relative frequency ogives.