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According to a survey of 25,000 ?households, 44% of the people watching a special event on TV enjoyed the commercials more than the event itself. Complete parts a through e below based on a random sample of nine people who watched the special event.
a. What is the probability that exactly three people enjoyed the commercials more than the? event?
The probability is
b. What is the probability that less than four people enjoyed the commercials more than the? event?
c. What is the probability that exactly six or seven people enjoyed the commercials more than the? event?
d. What are the mean and standard deviation for this? distribution?
The mean is
The standard deviation is
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