The following results on summations will help us in calculating the sample variance s?. For any constant c, the following apply. 1. C = nc i = 1 Cy i = C 2. i = i = 1 3. (x; + Y;) Yi i = 1 i = 1 Use 1, 2, and 3 to show that 2 1 s2 = (Y, - 7)² = n - 1 i = 1 n - 1

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
The following results on summations will help us in calculating the sample variance s?. For any constant c, the following apply.
1.
C = nc
i = 1
Cy i
= C
2.
i =
i = 1
3.
(x; + Y;)
Yi
i = 1
i = 1
Use 1, 2, and 3 to show that
2
1
s2 =
(Y, - 7)² =
n - 1
i = 1
n - 1
Transcribed Image Text:The following results on summations will help us in calculating the sample variance s?. For any constant c, the following apply. 1. C = nc i = 1 Cy i = C 2. i = i = 1 3. (x; + Y;) Yi i = 1 i = 1 Use 1, 2, and 3 to show that 2 1 s2 = (Y, - 7)² = n - 1 i = 1 n - 1
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman