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Question

If P(A)=0.3, P(B)=0.4, then the value of P(AB) where A and B are independent events is

A
0.48
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B
0.51
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C
0.52
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D
0.58
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Solution

The correct option is D 0.58
If A and B are two independent events, then P(AB)=P(A)P(B)
P(AB)=P(A)+P(B)P(AB)
P(AB)=0.3+0.4(0.3)(0.4) ....... [P(AB)=P(A)P(B)]
P(AB)=0.58

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