1. The following are the test results for a grade 12 math class of 20 students: 82 85 94 96 72 79 81 97 65 91 68 86 83 72 92 72 84 97 81 75 a. Calculate the mean, median, and mode from the class's test results. Round answers to one decimal place where applicable. b. Calculate the range of the test scores. c. Determine the first, second, and third quartiles.

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1. The following are the test results for a grade
12 math class of 20 students:
82
85
94
96
72
79
81
97
65
91
68
86
83
72
92
72
84
97
81
75
a. Calculate the mean, median, and mode from
the class's test results. Round answers to
one decimal place where applicable.
b. Calculate the range of the test scores.
c. Determine the first, second, and third
quartiles.
d. Calculate the percentile rank of a person
who got a score of 72%.
e. What is the test score of a person who is in
the 80th percentile of the data?
Gauth
/math
Transcribed Image Text:4:41 1/3 1. The following are the test results for a grade 12 math class of 20 students: 82 85 94 96 72 79 81 97 65 91 68 86 83 72 92 72 84 97 81 75 a. Calculate the mean, median, and mode from the class's test results. Round answers to one decimal place where applicable. b. Calculate the range of the test scores. c. Determine the first, second, and third quartiles. d. Calculate the percentile rank of a person who got a score of 72%. e. What is the test score of a person who is in the 80th percentile of the data? Gauth /math
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