Computer chips often contain surface imperfections. For a certain type of computer chip, the probability mass function
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Computer chips often contain surface imperfections. For a certain type of computer chip, the probability mass function of the number of defects \(X\) is presented in the following table.
a. Find \(P(X \leq 2)\).
b. Find \(P(X>1)\).
c. Find \(\mu_{X}\).
d. Find \(\sigma_{x}^{2}\).
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