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2014-11-23T21:45:38+08:00

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12+16=28 Probability of a boy: =12/28 =6/14 =3/7 =42.86% Hope this helps =)
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2014-11-24T11:25:25+08:00
Add the number of boys and girls

12 + 16 = 28

Then divide the number of boys and the total number of student (boys + girls)

Since probability is equal to the number of chance over to the total number of possibility.

12/28

Therefore

3/7 probability for a boy's name to be pick.

or simply

43%

or

0.4285714285714286 probability

I hope it helps
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