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If a family has 4 children, what is the probability that they have 2 boys and 2 girls? Assuming that the probability of getting a boy or a girl is the same.

 Dec 21, 2019
 #1
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The probability is: [4! /2!. 2!] =6 / 2^4 =6/16 =37.50 %

 Dec 21, 2019
 #2
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Here are the possibilities

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111   16 possibilities    6 have 2 of each     6/16 = 37.5 %    ...as Guest posted!

 Dec 21, 2019
edited by ElectricPavlov  Dec 21, 2019
edited by ElectricPavlov  Dec 21, 2019

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