JEE Main 2022 Mathematics question
Let a biased coin be tossed 5 times. If the probability of getting 4 heads is equal to the probability of getting 5 heads, then the probability of getting atmost two heads is :
Answer: (4)
Solution
Let P(head) = p. Then , so 5(1 − p) = p and p = 5/6. The probability of at most two
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