ample of 12 measurements has a mean of 20 and a standard deviation of 2. Suppose that the sample is enlarged to 14 measurements, by including o additional measurements having a common value of 20 each. Find the mean of the sample of 14 measurements. ean = 20 - Find the standard deviation of the sample of 14 measurements. standard Deviation =

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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A sample of 12 measurements has a mean of 20 and a standard deviation of 2. Suppose that the sample is enlarged to 14 measurements, by including
two additional measurements having a common value of 20 each.
A. Find the mean of the sample of 14 measurements.
Mean =
20
B. Find the standard deviation of the sample of 14 measurements.
Standard Deviation =
Transcribed Image Text:A sample of 12 measurements has a mean of 20 and a standard deviation of 2. Suppose that the sample is enlarged to 14 measurements, by including two additional measurements having a common value of 20 each. A. Find the mean of the sample of 14 measurements. Mean = 20 B. Find the standard deviation of the sample of 14 measurements. Standard Deviation =
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