Posted by **Anonymous** on Wednesday, September 19, 2007 at 4:53pm.

Ignoring twins and other mutiple births, assume babies born at a hospital are independent events with the probability that a baby is a boy and the probability that a baby is a girl both equal to 0.5. Referring to the information above, the probability that at least one of the next three babies are of the same sex is...?

I don't know how to approach this problem. Please help!

- statistics -
**economyst**, Thursday, September 20, 2007 at 9:47am
For these types of problems, I like drawing a probability tree.

That said, I really dont understand your question. With 3 babies, at least 2 will be of the same sex (BBG or BGG) possibly all 3 are the same sex (BBB or GGG). Could you clarify?

- statistics -
**PsyDAG**, Thursday, September 20, 2007 at 12:37pm
Is this a trick question? "One" cannot be the same sex. It takes at least two to be the same.

I hope this helps a little more. Thanks for asking.

## Answer this Question

## Related Questions

- Math - Assume that the probability is 1/2 that a baby born is a boy. If a couple...
- math - 35 yrs ago babies are born here hospital celebrated the births of the ...
- statistics - Based on data from the National Center for Health Statistics, N. ...
- stats. - Based on data from the National Center for Health Statistics, N. Wetzel...
- Statistics - Suppose you conduct a study and find that the probability of having...
- Statistics - Suppose you conduct a study and find that the probability of having...
- math - for the given pair of events A and B complete parts (a) and (b) below : A...
- Statistics - A study shows that the probability of a baby being born with gene x...
- statistics - Your best friend is 5 months pregnant and wants you to be there ...
- Math - An upscale department offers its customers free gift wrapping on any day ...

More Related Questions