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The high temperatures (in degrees Celsius) each day over a three week period were as follows: 17, 18, 20, 22, 21, 19, 16, 15, 18, 20, 21, 21, 22, 21, 19, 20, 19, 17, 16, 16, 17. Compute the mean, median, and mode.

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mean = 18....

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The accompanying data set contains quiz scores for 12 students in a chemistry class: 18, 15, 5, 8, 15, 20, 2, 16, 10, 12, 20, 15. a. Find a measure of central tendency that separates the data into two groups such that each groupconsists of 50% of the scores above and 50% of the scores below that measure. b. Find a measure of central tendency that represents the quiz score that occurs most often. c. Find a measure of central tendency that represents the average of the 12 quiz scores.

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a. median ...

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A group of 79 students were asked how far they commute to work from home each time they go to work from home. The results are given below. Would a drive of 15 miles be considered an outlier? A group of 79 students were asked how far they commute to work from home each time they go to work from home. The results are given below. Would a drive of 15 miles be considered an outlier?

A) True
B) False

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The following data represents a random sample of 15 complaints registered with the customer service department of a store. Determine the median complaint. The following data represents a random sample of 15 complaints registered with the customer service department of a store. Determine the median complaint. A) Messy store B) No median C) Defective product D) Excessive waiting time


A) Messy store
B) No median
C) Defective product
D) Excessive waiting time

E) A) and B)
F) A) and C)

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Compute the range for the set of data. -6, 16, 6, 16, 6, 16, 6, 16


A) 10
B) 11
C) 20
D) 16

E) A) and C)
F) B) and D)

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A severe drought affected several western states for 3 years. A Christmas tree farmer is worried about the drought's effect on the size of his trees. To decide whether the growth of the trees has been retarded, the farmer decides to take a sample of the heights of 25 trees and obtains the following results (recorded in inches) : A severe drought affected several western states for 3 years. A Christmas tree farmer is worried about the drought's effect on the size of his trees. To decide whether the growth of the trees has been retarded, the farmer decides to take a sample of the heights of 25 trees and obtains the following results (recorded in inches) : The tree farmer feels the normal height of a tree that was unaffected by the drought would be 65 inches. Find the z-score for a tree that is 65 inches tall. A) z = 0.98 B) z = 0.98. C) z = 0.77 D) z = 0.84 The tree farmer feels the normal height of a tree that was unaffected by the drought would be 65 inches. Find the z-score for a tree that is 65 inches tall.


A) z = 0.98
B) z = 0.98.
C) z = 0.77
D) z = 0.84

E) B) and C)
F) None of the above

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For the following data set, approximate the sample standard deviation of monthly telephone bills (in dollars) . For the following data set, approximate the sample standard deviation of monthly telephone bills (in dollars) . A) $3.11 B) $9.65 C) $58.60 D) $93.12


A) $3.11
B) $9.65
C) $58.60
D) $93.12

E) A) and B)
F) A) and C)

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Find the sample standard deviation. -13, 14, 15, 16, 17


A) 1.3
B) 1.5
C) 2.5
D) 1.6

E) A) and C)
F) B) and C)

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Find the sample standard deviation. -7, 5, 13, 18, 11, 17, 17, 20, 16


A) 5.2
B) 26.7
C) 23.7
D) 4.9

E) None of the above
F) All of the above

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Given the following five-number summary, find the IQR. 2.9, 5.7, 10.0, 13.2, 21.1.


A) 7.1
B) 18.2
C) 7.5
D) 11.1

E) A) and B)
F) B) and D)

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Compute the range for the set of data. -2.4, 5.6, 1.5, 4.2, 6.4, 3.2


A) 3.9
B) 1.5
C) 4.9
D) 6.4

E) A) and B)
F) None of the above

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The April precipitation amounts (in inches) for 10 cities are listed below. Find the range of the data. The April precipitation amounts (in inches) for 10 cities are listed below. Find the range of the data. A) 2.45 inches B) 1.4 inches C) 2.8 inches D) 3.2 inches


A) 2.45 inches
B) 1.4 inches
C) 2.8 inches
D) 3.2 inches

E) C) and D)
F) B) and C)

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The number of goals scored by a random sample of 16 hockey players for a given season are 5, 3, 21, 10, 7, 2, 0, 30, 19, 6, 4, 7, 10, 5, 7, and 24. Compute the mean, median, and mode.

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mean = 10 ...

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When results from a scholastic assessment test are sent to test-takers, the percentiles associated with their scores are also given. Suppose a test-taker scored at the 9 8th percentile for their verbal grade and at the When results from a scholastic assessment test are sent to test-takers, the percentiles associated with their scores are also given. Suppose a test-taker scored at the 9 8th percentile for their verbal grade and at the percentile for their quantitative grade. Interpret these results. A) This student performed better than 2% of the other test-takers in the verbal part and better than in the quantitative part. B) This student performed better than 9 8% of the other test-takers in the verbal part and better than in the quantitative part. C) This student performed better than 9 8% of the other test-takers in the verbal part and better than 75% in the quantitative part. D) This student performed better than 2% of the other test-takers in the verbal part and better than 75% in the quantitative part. percentile for their quantitative grade. Interpret these results.


A) This student performed better than 2% of the other test-takers in the verbal part and better than When results from a scholastic assessment test are sent to test-takers, the percentiles associated with their scores are also given. Suppose a test-taker scored at the 9 8th percentile for their verbal grade and at the percentile for their quantitative grade. Interpret these results. A) This student performed better than 2% of the other test-takers in the verbal part and better than in the quantitative part. B) This student performed better than 9 8% of the other test-takers in the verbal part and better than in the quantitative part. C) This student performed better than 9 8% of the other test-takers in the verbal part and better than 75% in the quantitative part. D) This student performed better than 2% of the other test-takers in the verbal part and better than 75% in the quantitative part. in the quantitative part.
B) This student performed better than 9 8% of the other test-takers in the verbal part and better than When results from a scholastic assessment test are sent to test-takers, the percentiles associated with their scores are also given. Suppose a test-taker scored at the 9 8th percentile for their verbal grade and at the percentile for their quantitative grade. Interpret these results. A) This student performed better than 2% of the other test-takers in the verbal part and better than in the quantitative part. B) This student performed better than 9 8% of the other test-takers in the verbal part and better than in the quantitative part. C) This student performed better than 9 8% of the other test-takers in the verbal part and better than 75% in the quantitative part. D) This student performed better than 2% of the other test-takers in the verbal part and better than 75% in the quantitative part. in the quantitative part.
C) This student performed better than 9 8% of the other test-takers in the verbal part and better than 75% in the quantitative part.
D) This student performed better than 2% of the other test-takers in the verbal part and better than 75% in the quantitative part.

E) C) and D)
F) A) and B)

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For the following data, approximate the mean weekly grocery bill. For the following data, approximate the mean weekly grocery bill. A) $ 146.50 B) $ 150.00 C) $ 148.00 D) $ 146.00


A) $ 146.50
B) $ 150.00
C) $ 148.00
D) $ 146.00

E) A) and D)
F) B) and C)

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Compute the range for the set of data. -0.224, 0.114, 0.451, 0.435, 0.645, 0.338


A) 0.114
B) 0.531
C) 0.368
D) 0.645

E) A) and B)
F) All of the above

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Compute the range for the set of data. -120, 553, 133, 641, 398, 335


A) 363.3
B) 641
C) 521
D) 120

E) A) and B)
F) B) and C)

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A random sample of sale prices of homes yielded the following summary information: A random sample of sale prices of homes yielded the following summary information: Comment on a home that had a sale price of $425,000. A) This sale price would be expected since it falls inside the lower and upper fences. B) This value falls outside the upper fence and is considered an outlier. C) This sale price falls between the lower and upper fences. It can be considered a potential outlier. D) This value falls outside of the third quartile, but cannot be considered an outlier. Comment on a home that had a sale price of $425,000.


A) This sale price would be expected since it falls inside the lower and upper fences.
B) This value falls outside the upper fence and is considered an outlier.
C) This sale price falls between the lower and upper fences. It can be considered a potential outlier.
D) This value falls outside of the third quartile, but cannot be considered an outlier.

E) A) and D)
F) B) and C)

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Compute the range for the set of data. -6, 17, 3, 13, 12


A) 17
B) 3
C) 14
D) 6

E) A) and B)
F) B) and D)

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Find the sample standard deviation. -115, 251, 179, 138, 112, 100, 151, 127, 105


A) 45.1
B) 2291.8
C) 2037.1
D) 47.9

E) A) and B)
F) A) and C)

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