The prevalence of mild myopia in adults over the age of 40 is 25% in the us supposed 4 adults over 40 are randomly chosen. Let Y denote the number of adult with myopia out of 4 with the following pmf of y Given X=10y-5 find the variance of X A) 75.10 B) 0.751 C) 70.10 D) 8.666

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The prevalence of mild myopia in adults over the age of 40 is 25% in the us supposed 4 adults over 40 are randomly chosen. Let Y denote the number of adult with myopia out of 4 with the following pmf of y Given X=10y-5 find the variance of X A) 75.10 B) 0.751 C) 70.10 D) 8.666
у (NO. муорк)
I
2
3
4
тон
Probability
0.316
0.422
0.211
0.04 1
0.004
1.000
Transcribed Image Text:у (NO. муорк) I 2 3 4 тон Probability 0.316 0.422 0.211 0.04 1 0.004 1.000
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