Find xP(x), x^2 and x^2P(x) when: 1. x=1. P(x)=0.25. 2. x=2. P(x)=0.28.

nicekikah

nicekikah

Answered question

2021-08-15

Find xP(x),x2andx2P(x) when:
1. x=1. P(x)=0.25.
2. x=2. P(x)=0.28.
3. x=3. P(x)=0.41.
4. x=4. P(x)=0.06.

Answer & Explanation

un4t5o4v

un4t5o4v

Skilled2021-08-16Added 105 answers

1. xP(x)=1×0.25=0.25
x2=12=1
x2P(x)=12×0.25=0.25
2.xP(x)=2×0.28=0.56
x2=22=4
x2P(x)=22×0.28=1.12
3. xP(x)=3×0.41=1.23
x2=32=9
x2P(x)=32×0.41=3.69
4. xP(x)=4×0.06=0.24
x2=42=16
x2P(x)=42×0.06=0.96

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