Question 403367
Mean = Sum of products between corresponding x and P(x) values


Mean = 0*0.15 + 1*0.20 + 3*0.10 + 4*0.20 + 5*0.05



Mean = 0 + 0.20 + 0.30 + 0.80 + 0.25



Mean = 1.55



So the mean is 1.55



Remember that the mean is NOT a probability since it corresponds to the average x value.