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Q.1 A nutritional study recently found the following number of calories in one slice of plain pizza at 10 different national chains. 228 281 274 408 364 259 317 299 302 231 a. Find the sample variance and sample standard deviation for these data. b. Add 15 (calories) to each observation. Find the sample variance and the sample standard deviation for the modified data set. c. How do your answers in parts (a) and (b) compare?

Q.1 A nutritional study recently found the following number of calories in one slice of plain pizza at 10 different national chains. 228 281 274 408 364 259 317 299 302 231 a. Find the sample variance and sample standard deviation for these data. b. Add 15 (calories) to each observation. Find the sample variance and the sample standard deviation for the modified data set. c. How do your answers in parts (a) and (b) compare?

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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Q.1 A nutritional study recently found the following number of calories in one slice of plain pizza at 10 different national chains. 228 281 274 408 364 259 317 299 302 231 a. Find the sample variance and sample standard deviation for these data. b. Add 15 (calories) to each observation. Find the sample variance and the sample standard deviation for the modified data set. c. How do your answers in parts (a) and (b) compare?
Transcribed Image Text:Q.1 A nutritional study recently found the following number of calories in one slice of plain pizza at 10 different national chains. 228 281 274 408 364 259 317 299 302 231 a. Find the sample variance and sample standard deviation for these data. b. Add 15 (calories) to each observation. Find the sample variance and the sample standard deviation for the modified data set. c. How do your answers in parts (a) and (b) compare?
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