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Question
Let X – B (n = 7, p = 0.5). Then P(X = 2) is ______.
Options
0.2641
0.1641
0.1177
0.2177
MCQ
Fill in the Blanks
Solution
Let X – B (n = 7, p = 0.5). Then P(X = 2) is 0.1641.
Explanation:
P(X = 2) = 7C2 (0.5)2 (0.5)5 = 0.1641
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Mean of Binomial Distribution (P.M.F.)
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