Reading scores. The grade-level reading scores from a reading test given to a random sample of 12 students in an urban high school graduating class are: 7 769 9 9 8 14 13 4 14 15 14 115 14 a. Find the mean of the reading scores. (Type an integer or a decimal. Round to two decimal places.) b. Find the standard deviation of the reading scores. (Type an integer or a decimal. Round to two decimal places.)
Reading scores. The grade-level reading scores from a reading test given to a random sample of 12 students in an urban high school graduating class are: 7 769 9 9 8 14 13 4 14 15 14 115 14 a. Find the mean of the reading scores. (Type an integer or a decimal. Round to two decimal places.) b. Find the standard deviation of the reading scores. (Type an integer or a decimal. Round to two decimal places.)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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Transcribed Image Text:Reading scores. The grade-level reading scores from a reading test given to a random sample of 12 students in an urban high
school graduating class are:
7
9
9
8
14
13
1111114
15
14
11
15
a. Find the mean of the reading scores.
(Type an integer or a decimal. Round to two decimal places.)
b. Find the standard deviation of the reading scores.
(Type an integer or a decimal. Round to two decimal places.)
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