Calculate the variance for the probability distribution

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Reference no: EM131460522

Question: According to a report from the Center for Studying Health System Change, 20% of Americans delay or go without medical care because of concerns about cost (The Wall Street Journal, June 26, 2008). Suppose eight individuals are randomly selected.

a. What is the probability that none will delay or go without medical care?

b. What is the probability that no more than two will delay or go without medical care?

c. What is the probability that at least seven will delay or go without medical care?

d. What is the expected number of individuals who will delay or go without medical care?

e. Calculate the variance and the standard deviation for this probability distribution.

Reference no: EM131460522

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