- #1

jaus tail

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## Homework Statement

## Homework Equations

First use equations to find out number of boys n number of girls.

Then use probability concepts.

## The Attempt at a Solution

Number of boys + number of girls = 12

Boys = Girls + 2

So we get Boys = 7, girls = 5.

Select more girls than boys in a group of 3 kids so we have:

GGG, BGG, GBG, GGB

So we have: 5/12 * 4/11 * 3/10 + 3 * [5/12 * 4/11 * 7/10]

But book has done this:

Shouldn't GGG be 5 * 4 * 3 / (12 * 11 * 10)?