Question

if a coin is tossed 7 times what is thr probability that the occurance of taips un the forst 3 trials is same as that in the last 4​

Answer 1

Answer:

7 coins are tossed,each coin has two possibilities therefore total number of possibilities are 2^7 = 128. The possibilities of obtaining 4 heads and 3 tails is 7C4 = 7C3 = 35. Therefore the probability of obtaining 4 heads and 3 tails 35/128.

Step-by-step explanation:

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Answer 2

Answer:

35/128

Step-by-step explanation:

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