The mean of a national test is known to be 275 with a standard deviation of 7. A group of 10 students had the following scores on the test: 260, 258, 277, 290, 254, 268, 270, 242, 265, and 272. Find μ and x ̅. a μ = 265.6 and x ̅ = 275 b μ = 275 and x ̅ = 7 c μ = 7 and x ̅ = 265.6 d μ = 275 and x ̅ = 265.6
The mean of a national test is known to be 275 with a standard deviation of 7. A group of 10 students had the following scores on the test: 260, 258, 277, 290, 254, 268, 270, 242, 265, and 272. Find μ and x ̅. a μ = 265.6 and x ̅ = 275 b μ = 275 and x ̅ = 7 c μ = 7 and x ̅ = 265.6 d μ = 275 and x ̅ = 265.6
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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Question
The mean of a national test is known to be 275 with a standard deviation of 7. A group of 10 students had the following scores on the test: 260, 258, 277, 290, 254, 268, 270, 242, 265, and 272.
Find μ and x ̅.
a
|
μ = 265.6 and x ̅ = 275
|
b
|
μ = 275 and x ̅ = 7
|
c
|
μ = 7 and x ̅ = 265.6
|
d
|
μ = 275 and x ̅ = 265.6
|
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