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(1 point) If a person is randomly selected in Clinton, I represents the number of siblings and Pr() is the corresponding prob

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Answer #1

(a) P[x=0]=0.27

(b) P(1\leq x\leq 4)=0.22+0.19+0.14+0.1

=0.65

(c) Mean =\sum x*P(x)

=0.*0.27+1*0.22+2*0.19+3*0.14+4*0.1+5*0.08

=1.82

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