A poll found that 73% of households own digital cameras. A random sample of 9 households
is selected
a) What is the probability that 2 of the households own a digital camera?
b) What is the probability that at most 1 of households owns a digital camera?
c) What is the probability that at least 1 household owns a digital camera?
d) Find the mean number of households that own a digital camera, and the standard
deviation.
e) Now suppose a random sample of 450 households is selected. Use Minitab to find the
probability that at least 350 own a digital camera.

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