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2. The Assignment 1 marks for several groups have come in and the group sizes, means and standard deviations for the groups are below. Group No. 1 23 Group Size (n) 10 8 12 Mean S.D. (x) (0) 75 4 89 2 81 6 Find the standard deviation and mean for the total cohort.

2. The Assignment 1 marks for several groups have come in and the group sizes, means and standard deviations for the groups are below. Group No. 1 23 Group Size (n) 10 8 12 Mean S.D. (x) (0) 75 4 89 2 81 6 Find the standard deviation and mean for the total cohort.

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 Assignment 1 marks for several groups have come in and the group sizes, means and standard deviations for the groups are below. Group No. 1 2 3 Group Size (n) 10 8 12 Mean S.D. (x) (0) 75 4 89 81 2 6 Find the standard deviation and mean for the total cohort.
Transcribed Image Text:2. The Assignment 1 marks for several groups have come in and the group sizes, means and standard deviations for the groups are below. Group No. 1 2 3 Group Size (n) 10 8 12 Mean S.D. (x) (0) 75 4 89 81 2 6 Find the standard deviation and mean for the total cohort.
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