# Solved >   51) Would a pie chart be appropriate:1413562 …

51) Would a pie chart be appropriate for displaying this data?
51) ______

A) No
B) Yes

52) What is the variable of interest?
52) ______

A) number of motorists on the Federal highway

B) whether or not a motorist was speeding

C) motorist’s speed

D) number of speeding motorists

A survey was conducted to determine how people rated the quality of programming available on television. Respondents were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stemandleaf display of the data is shown below.

53) What percentage of the respondents rated overall television quality as very good (regarded as ratings of 80 and above)?
53) ______

A) 4%
B) 12%
C) 3%
D) 32%
E) 1%

54) What is the mode rating?
54) ______

A) 93
B) 9
C) 51
D) 49

55) The variable “quality” is
55) ______

A) Categorical
B) Quantitative

56) Identify the minimum quality rating.
56) ______

A) 0
B) 26
C) 32
D) 2

57) Identify the maximum quality rating.
57) ______

A) 3
B) 93
C) 49
D) 100

Find the original data from the stemandleaf plot.

58)
58) ______

A) 85, 81, 88, 91, 101, 105

B) 85, 88, 91, 91, 105, 105

C) 81, 85, 81, 98, 108, 105

D) 81, 88, 81, 98, 105, 105

E) 85, 88, 91, 98, 105, 105

The following data show the number of laps run by each participant in a timed running race:

46   65   55   43   51   48   57   30   43   49   32   56

59) If the stems are 3, 4, 5 and 6, how many leaves are on the “4 stem”?
59) ______

A) 4
B) 5
C) 1
D) 0

60) If the stems are 3, 4, 5 and 6,what are the values of the leaves are on the “4 stem”?
60) ______

A) 0
B) 5
C) 3, 6, 8, 9
D) 3, 3, 6, 8, 9

61) Is the variable “number of laps run” discrete or continuous?
61) ______

A) Discrete
B) Neither
C) Continuous

62) What is the mode for number of laps run?
62) ______

A) 43
B) 3
C) 65
D) 30

A nurse measured the blood pressure of each person who visited her clinic.  Following is a relativefrequency histogram for the systolic blood pressure readings for those people aged 25 to 40. Use the histogram to answer the question. The blood pressure readings were given to the nearest whole number.

63) Approximately what percentage of the people aged 2540 had a systolic blood pressure reading of at least 110 but less than 120?
63) ______

A) 15%
B) 0.35%
C) 3.5%
D) 35%
E) 30%

64) Approximately what percentage of the people aged 2540 had a systolic blood pressure reading less than 120?
64) ______

A) 15%
B) 50%
C) 35%
D) 5%
E) 3.5%

65) Given that 200 people were aged between 25 and 40, approximately how many had a systolic blood pressure reading less than 130?
65) ______

A) 100
B) 75
C) 25
D) 150
E) 50

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