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
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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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.)
x = 


(b) Find the approximate sample standard deviation, s. (Round your answer to two decimal places.)
s = 
 
 
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