Please explain step by step thanks. Samples of aluminum-alloy channels were tested forstiffness. The following frequency distribution was ob-tained. The distribution is assumed to be normal.stiffness24802440240023602320frequency2335403321 14. What is the approximate standard deviation of thepopulation from which the samples were taken?

Given data is stiffness frequency 2480 23 2440 35 2400 40 2360 33 2320 21

Answered: Samples of aluminum-alloy channels were…

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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Samples of aluminum-alloy channels were tested for stiffness. The following frequency distribution was ob- tained. The distribution is assumed to be normal. stiffness 2480 2440 2400 2360 2320 frequency 23 35 40 33 21