If X ~ B(4, 1/3), find P(X = 2).
A2/9
B1/9
C4/9
D8/27
Answer & Solution
Correct answer: D. 8/27
4C2 (1/3)^2 (2/3)^2 = 6 x 4/81 = 24/81 = 8/27.
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