Lia K.

asked • 05/11/21

Math Question Help


1.Q;In a class there are five girls and seven boys. For a school project


the teacher would like to form a group of three students.


What are the chances that there will be at least one female in the group?

1 Expert Answer

By:

Paul M. answered • 05/12/21

Tutor
5.0 (39)

BS Mathematics, MD
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This is a straight hypergeometric distribution question.

The answer is 5C1*7C2 / 12C3 where the C's are the binomial coefficients.

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Doug C.

tutor
Except that it is for "at least" one female, so there could also be 2 or 3. Easier to take the complement of "no females"?
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05/12/21

Paul M.

tutor
Of course, Doug C. is correct.
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05/12/21

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