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Eight coins are tossed together. The probability of getting exactly 3 heads is

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Eight coins are tossed together. The probability of getting exactly 3 heads is A. 1/256 B. 7/32 C, 5/32 D. 3/32 Select the correct answer from above options

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We know, probability distribution P(X=r)=nCr (p)r qn-r Here. Total number coin is tossed, n = 8 The probability of getting head, p =1/2 The probability of getting tail, q = 1/2

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