The following data were obtained from a survey of college

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Reference no: EM13622740

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.

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?

Reference no: EM13622740

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