Question
A recent study shows that 18% of adults in the US do not use the Internet. Suppose that 12 adults are randomly selected in the
A recent study shows that 18% of adults in the US do not use the Internet. Suppose that 12 adults are randomly selected in the US.
a)Construct the PMF of X, the number of adults who don't use internet in this group.
b)What is the expected value and variance of X?
c)What is the probability that at least 1 of the adults uses the Internet?
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Complex Variables and Applications
Authors: James Brown, Ruel Churchill
8th edition
73051942, 978-0073051949
