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Assume equally likely outcomes.

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Assume equally likely outcomes.

 Determine the probability of having 3 boys in a 3-child family.

asked Feb 16, 2015 in PRECALCULUS by anonymous

1 Answer

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Step 1:

In the family there are 3 children.

List the possible outcomes is image.

The number of all possible outcomes is image.

The number of ways that 3 boys occur in a 3-child family is 1.

All the events are equally likely events.

Let  be the event of 3 boys occur in a 3-child family.

The probability of  for equally likely outcomes is defined as and it is denoted by .

image

image

Solution:

The probability of having 3 boys in a 3-child family is image.

answered Feb 23, 2015 by david Expert

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