2. By reviewing statistics Canada's website, the following table indicates the number of children born in a family (X) and their corresponding probability distributions of 1,280 Ontarian families surveyed during 2010: P(X) 0.39 1 0.26 2 0.12 3 0.09 4 0.06 0.04 0.03 7 0.01

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2. By reviewing statistics Canada's website, the following table indicates the number of children born in a
family (X) and their corresponding probability distributions of 1,280 Ontarian families surveyed during
2010:
P(X)
0.39
1
0.26
2
0.12
3
0.09
4
0.06
0.04
0.03
7
0.01
Find out the mean and the standard deviation of this distribution. Show your calculation method(s).
Transcribed Image Text:2. By reviewing statistics Canada's website, the following table indicates the number of children born in a family (X) and their corresponding probability distributions of 1,280 Ontarian families surveyed during 2010: P(X) 0.39 1 0.26 2 0.12 3 0.09 4 0.06 0.04 0.03 7 0.01 Find out the mean and the standard deviation of this distribution. Show your calculation method(s).
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