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Discrete random variables — Question 224

Original QCE Vault practice · 1 mark

Q224 · Practice questionTechnology-activeSimple familiar1 mark

QUESTION 224

If X∼B(10,0.3),P(X=2)X\sim B(10,0.3), P(X=2) is
(A)
(0.3)2(0.7)8(0.3)^{2}(0.7)^{8}
(B)
C(10,2)(0.3)2(0.7)8C(10,2)(0.3)^{2}(0.7)^{8}
(C)
10(0.3)(0.7)910(0.3)(0.7)^{9}
(D)
1−(0.7)101-(0.7)^{10}
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