JEE Math Practice 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 :
- A.$${{275} \over {{6^5}}}$$
- B.$${{36} \over {{5^4}}}$$
- C.$${{181} \over {{5^5}}}$$
- D.$${{46} \over {{6^4}}}$$
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