Find the probability that when a couple has ​children, at least one of them is a . ​(Assume that boys and girls are equally​ likely.)

Step-by-step explanation:

Given

--- equal probability

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Required:

To do this, we make use of complement rule:

The event that there is no girl out of the 3 children is: B B B

And the probability is:

So:

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

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step-by-step explanation: