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2. The grade-point averages of 10 college seniors selected at random from a graduating class are as follows: x 3.2 2.9 1.8 3.2 1.9 3.8 2.5 2.3 2.7 +2 3.0 Calculate the standard deviation using: If S2 is the variance of a random sample of size n, we may write 1 n Σ n 8-x-(x)] = n(n - 1) n i=1 ΣΧ i=1

2. The grade-point averages of 10 college seniors selected at random from a graduating class are as follows: x 3.2 2.9 1.8 3.2 1.9 3.8 2.5 2.3 2.7 +2 3.0 Calculate the standard deviation using: If S2 is the variance of a random sample of size n, we may write 1 n Σ n 8-x-(x)] = n(n - 1) n i=1 ΣΧ i=1

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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2. The grade-point averages of 10 college seniors selected at random from a graduating class are as follows: χ 3.2 2.9 1.8 3.2 1.9 3.8 2.5 2.3 2.7 3.0 x² Calculate the standard deviation using: If S2 is the variance of a random sample of size n, we may write 1 S2 = n(n - 1) n Σ Xi •£*-(£×)] n ΣΧ i=1 i=1
Transcribed Image Text:2. The grade-point averages of 10 college seniors selected at random from a graduating class are as follows: χ 3.2 2.9 1.8 3.2 1.9 3.8 2.5 2.3 2.7 3.0 x² Calculate the standard deviation using: If S2 is the variance of a random sample of size n, we may write 1 S2 = n(n - 1) n Σ Xi •£*-(£×)] n ΣΧ i=1 i=1
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