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bevywevy bevywevy
wrote...
Posts: 25
Rep: 0 0
9 years ago
The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months.
x
0
1
2
3
4
5
P (X=x)
0.20
0.25
0.20
0.15
0.10
0.10

What is the variance of X?[/b]
 A.2.34   
 B.3.42   
 C.2.50   
 D.4.32   
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wrote...
9 years ago
Hey bevywevy,

See if the attachment helps.
 Attached file 
(2110.32 KB)
bevywevy Author
wrote...
9 years ago
I didn't see the answer I was looking for...but thank you for trying.
wrote...
9 years ago
Thanks!
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