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The marks of 7 math students were recorded. Find the sample standard deviation. 61, 64, 65, 72, 78, 81, 86 Math Mark (x) (x-x)² Step 1) Find the sample mean x = Step 2) Make a table and calculate (x-x)² Step 3) Add up all the values you just found. Step 4) Plug this into the standard deviation formula. Σ(x-x) =

The marks of 7 math students were recorded. Find the sample standard deviation. 61, 64, 65, 72, 78, 81, 86 Math Mark (x) (x-x)² Step 1) Find the sample mean x = Step 2) Make a table and calculate (x-x)² Step 3) Add up all the values you just found. Step 4) Plug this into the standard deviation formula. Σ(x-x) =

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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Question 1 The marks of 7 math students were recorded. Find the sample standard deviation. 61, 64, 65, 72, 78, 81, 86 (x - x)² Step 1) Find the sample mean X = Step 2) Make a table and calculate (x-x)² Step 3) Add up all the values you just found. Step 4) Plug this into the standard deviation formula. Math Mark (x) Σ(x-x)² =
Transcribed Image Text:Question 1 The marks of 7 math students were recorded. Find the sample standard deviation. 61, 64, 65, 72, 78, 81, 86 (x - x)² Step 1) Find the sample mean X = Step 2) Make a table and calculate (x-x)² Step 3) Add up all the values you just found. Step 4) Plug this into the standard deviation formula. Math Mark (x) Σ(x-x)² =
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