Question

the probability of getting exactly one head in three throwns of a coin is?​

Answer 1

Answer:

N=3: To get 3 heads, means that one gets only one tail. This tail can be either the 1st coin, the 2nd coin, the 3rd, or the 4th coin. Thus there are only 4 outcomes which have three heads. The probability is 4/16 = 1/4.

Step-by-step explanation:

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Answer 2

Answer:

.

To get 3 heads, means that onegets only one tail. This tail can be either the 1st coin, the 2nd coin, the 3rd, or the 4th coin. Thus there areonly 4 outcomes which have three heads. The probability is 4/16 = 1/4.