Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows. # of movies Frequency 0 5 1 8 2 7 3 3 4 2 (a) Find the sample mean x. (Enter your answer to two decimal places.) x = (b) Find the approximate sample standard deviation, s. (Round your answer to two decimal places.) s =
Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows. # of movies Frequency 0 5 1 8 2 7 3 3 4 2 (a) Find the sample mean x. (Enter your answer to two decimal places.) x = (b) Find the approximate sample standard deviation, s. (Round your answer to two decimal places.) s =
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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Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows.
# of movies | Frequency |
---|---|
0 | 5 |
1 | 8 |
2 | 7 |
3 | 3 |
4 | 2 |
(a) Find the sample mean x. (Enter your answer to two decimal places.)
(b) Find the approximate sample standard deviation, s. (Round your answer to two decimal places.)
x =
(b) Find the approximate sample standard deviation, s. (Round your answer to two decimal places.)
s =
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