An optical inspection system is to distinguish among differe

An optical inspection system is to distinguish among different part types.
An optical inspection system is to distinguish among different part
types.The probability of a correct classification of any part is 0.98.
Suppose that three parts are inspected and that the classifications are
independent.Let the random variable X denote the number of parts that are correctly classified.Determine the probability mass function of X.
X=0,1,2,3时,f(x)分别等于多少?
stdang 1年前 已收到2个回答 举报

qr32r5253v34 幼苗

共回答了16个问题采纳率:87.5% 举报

f(0)=0.02*0.02*0.02
f(1)=3C1*0.98*0.02*0.02;
f(2)=3C2*0.98*0.98*0.02;
f(3)=0.98*0.98*0.98

1年前

5

x_xhai 幼苗

共回答了17个问题 举报

f(0)=0.02*0.02*0.02
f(1)=3C1*0.98*0.02*0.02;
f(2)=3C2*0.98*0.98*0.02;
f(3)=0.98*0.98*0.98

1年前

1
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