Statistics Worksheet With Answer Key (Page 12 of 20) in pdf

Solve the problem. Round results to the nearest

Find the range for the given data.

hundredth.

58) The owner of a small manufacturing plant

54) A department store, on average, has daily

employs six people. As part of their personnel

sales of $29,112.90. The standard deviation of

file, she asked each one to record to the nearest

sales is $1500. On Tuesday, the store sold

one-tenth of a mile the distance they travel

$35,669.13 worth of goods. Find Tuesdayʹs z

one way from home to work. The six distances

score. Was Tuesday an unusually good day?

are listed below:

A) 3.50, no

B) 4.59, no

2.6 5.4 1.6 4.9 6.7 3.8

C) 4.68, yes

D) 4.37, yes

Compute the range.

A) 5.4

B) 1.6

C) 1.2

D) 5.1

Provide an appropriate response.

55) When finding percentiles, if the locator L is not

Solve the problem.

a whole number, one procedure is to

59) The ages of the members of a gym have a

interpolate so that a locator of 23.75, for

mean of 40 years and a standard deviation of

example, leads to a value that is 3/4 of the way

13. Use the range rule of thumb to estimate

between the 23rd and 24th scores. Use this

the minimum and maximum ʺusualʺ ages.

method of interpolation to find P 75 for the set

A) 14 years, 66 years

B) 16 years, 68 years

of test scores below.

C) 13 years, 67 years

D) 27 years, 53 years

Find the mean for the given sample data.

A) 83.75

B) 84.5

60) The normal monthly precipitation (in inches)

C) 86

D) 83

for August is listed for 20 different U.S. cities.

Find the mean of the data.

3.5 1.6 2.4 3.7 4.1

Find the midrange for the given sample data.

3.9 1.0 3.6 4.2 3.4

56) A meteorologist records the number of clear

3.7 2.2 1.5 4.2 3.4

days in a given year in each of 21 different U.S.

2.7 0.4 3.7 2.0 3.6

cities. The results are shown below. Find the

A) 2.94 in.

B) 3.09 in.

midrange.

C) 3.27 in.

D) 2.80 in.

72 143 52 84 100 98 101

120 99 121 86 60 59 71

125 130 104 74 83 55 169

Find the midrange for the given sample data.

A) 112

B) 117

61) 49 52 52 52 74 67 55 55

C) 110.5

D) 98

A) 12.5

B) 53.5

C) 25

D) 61.5

57) Bill kept track of the number of hours he spent

exercising each week. The results for 15 weeks

Determine which score corresponds to the higher relative

are shown below. Find the midrange.

position.

7.2 7.0 7.2 7.4 7.5

62) Which is better, a score of 92 on a test with a

7.5 6.5 8.0 8.1 7.4

mean of 71 and a standard deviation of 15, or a

8.7 7.0 7.5 8.9 7.5

score of 688 on a test with a mean of 493 and a

A) 2.4

B) 7.60

standard deviation of 150?

C) 7.5

D) 7.70

A) Both scores have the same relative

position.

B) A score of 688

C) A score of 92

Statistics Worksheet With Answer Key Page 12

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