A fair die is rolled 10 times. What is the probability that an even number (2, 4, or 6) will occur between 2 and 4 times inclusive?
A) .6123
B) .1709
C) .1611
D) .3662
E) .3223

Name: A fair die is rolled 10 times. What is the probability that an even number (2, 4, or 6) will occur between 2 and 4 times inclusive? A) .6123 B) .1709 C) .1611 D) .3662 E) .3223
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Question

Quizplus · Accepted Answer

ΣP(X) = n!/[x!(n − x)!] × p^x(1 − p)^n−x, for x = 2, 4, 6; or look up in binomial table, where x = 2 or 4 or 6 when p = .5 and n = 10.

A Fair Die Is Rolled 10 Times