part a: find the variance part b: find the standard deviation Automotive Fuel Efficiency Forty-four automobiles were tested for fuel efficiency (in miles per gallon). The following frequencydistribution was obtained. Find the variance and standard deviation. Use a TI-83 Plus/TI-84 Plus calculator. Round your answers toat least one decimal place.Class boundaries Frequency7.5-12.5712.5-17.51017.5-22.51422.5-27.5827.5-32.5Send data to ExcelVariance =Standard deviation =

The formula to calculate the sample variance is:

Answered: Automotive Fuel Efficiency Forty-four…

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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Automotive Fuel Efficiency Forty-four automobiles were tested for fuel efficiency (in miles per gallon). The following frequency distribution was obtained. Find the variance and standard deviation. Use a TI-83 Plus/TI-84 Plus calculator. Round your answers to at least one decimal place.