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Discrete random variables — Question 343

Original QCE Vault practice · 1 mark

Q343 · Practice questionTechnology-activeSimple familiar1 mark

QUESTION 343

X\sim\operatorname{Bin}(50,0.6)

. Determine, to four decimal places, the probability that

X

is within one standard deviation of its mean.

(A)

0.9545

(B)

0.6877

(C)

0.5286

(D)

0.7460

ABCD

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