SOLUTION: assume there is a 4 person family and you are looking at the gender of the children. let the random variable X stand for the number of females in the 4 children in the sample.
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-> SOLUTION: assume there is a 4 person family and you are looking at the gender of the children. let the random variable X stand for the number of females in the 4 children in the sample.
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Question 850808: assume there is a 4 person family and you are looking at the gender of the children. let the random variable X stand for the number of females in the 4 children in the sample.
list the discrete random variable distribution in table format for this situation. find the mean,variance, and standard deviation for this distribution.
You can put this solution on YOUR website! Look at all possible outcomes, then count the number of females.
MMMM=0
MMMF=1
MMFM=1
MMFF=2
MFMM=1
MFMF=2
MFFM=2
MFFF=3
FMMM=1
FMMF=2
FMFM=2
FMFF=3
FFMM=2
FFMF=3
FFFM=3
FFFF=4
So then the discrete probability distribution looks like,
0,1/16
1,4/16
2,6/16
3,4/16
4,1/16
