Question 4.30: Let X denote the number of flaws in a 1 in. length of copper...
Let X denote the number of flaws in a 1 in. length of copper wire. The probability mass function of X is presented in the following table.
\begin{array}{cc}\hline x & P ( X=x ) \\\hline 0 & 0.48 \\1 & 0.39 \\2 & 0.12 \\3 & 0.01 \\\hline\end{array}
One hundred wires are sampled from this population. What is the probability that the average number of flaws per wire in this sample is less than 0.5?
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