Question #310816

A factory produces fuse. The probability of selecting a defective fuse is 0.045. A sample of 15 fuses were selected. Calculate the probability of getting 12 non defective fuses


1
Expert's answer
2022-03-16T16:49:55-0400

Let X be a random variable representing the number of non defective fuses, then X ~ Bin(15, 0.955)

P(X=12)=(1512)∗0.95512∗0.0453≈0.024P(X=12)={15 \choose 12}*0.955^{12}*0.045^3\approx0.024


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