It has been reported that 63% of adults aged 65 and over got their flu shots last year. In a random sample of 300 adults aged 65 and over, find the mean, variance, and standard deviation for the number who got their flu shots.
Answer to relevant QuestionsThe chance that a U.S. police chief believes the death penalty “significantly reduces the number of homicides” is 1 in 4. If a random sample of 8 police chiefs is selected, find the probability that at most 3 believe ...At Tyler’s Tie Shop, Tyler found the probabilities that a customer will buy 0, 1, 2, 3, or 4 ties, as shown. Construct a graph for the distribution. To the left of z = –1.39 Find the area under the standard normal distribution curve. To the left of z = 2.11 Find the area under the standard normal distribution curve. P (z < 0.82) Find the probabilities for each, using the standard normal distribution.
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