According to the Alzheimer’s Association (www.alz.org/documents_custom/2011_Facts_Figures_ Fact_Sheet.pdf), 3.7% of Americans with Alzheimer’s disease were younger than the age of 65 years in 2011 (which means that they were diagnosed with early onset of Alzheimer’s). Suppose that currently 3.7% of Americans with Alzheimer’s disease are younger than the age of 65 years. Suppose that two Americans with Alzheimer’s disease are selected at random. Let x denote the number in this sample of two Americans with Alzheimer’s disease who are younger than the age of 65 years. Construct the probability distribution table of x. Draw a tree diagram for this problem.
Answer to relevant QuestionsClassify each of the following random variables as discrete or continuous. a. The time left on a parking meter b. The number of bats broken by a major league baseball team in a season c. The number of cars in a parking lot ...Find the mean and standard deviation for each of the following probability distributions. a. x P(x) 3.... .09 4.... .21 5.... .34 6.... .23 7.... .13 b. x P(x) 0.... .43 1.... .31 2.... ...Let x be the number of potential weapons detected by a metal detector at an airport on a given day. The following table lists the probability distribution of x. Calculate the mean and standard deviation for this probability ...Refer to the probability distribution you developed in Exercise 5.21 for the number of athletes in a random sample of two who have used illegal performance-enhancing drugs. Calculate the mean and standard deviation of x for ...The binomial probability distribution is symmetric for p = .50, skewed to the right for p < .50, and skewed to the left for p > .50. Illustrate each of these three cases by writing a probability distribution table and ...
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