Recent surveys report that although Internet access has grown rapidly, it’s not universal: Only 71% of U.S. households have Internet access at home. Internet access isn’t universal for households that have computers. Of the 77% of households that have computers, 8% do not have Internet access.14 Treat these percentages as probabilities. What is the probability that, among households not connected to the Internet, the household does not have a computer?
Answer to relevant QuestionsSuppose that 10% of the clerical staff in an office smoke cigarettes. Research shows that 60% of smokers and 15% of nonsmokers suffer a breathing illness by age 65. (a) Do these percentages indicate that smoking and this ...1. If the mean of Y is $3,200, then the variance of Y must be larger than $3,200. 2. If E(X) = +2,300, then P(X . 2,300) = 1 / 2. 3. The units of both the mean and standard deviation of Y are dollars. 4. If an insurance ...Given that the random variable X has mean μ = 120 and SD σ = 15, find the mean and SD of each of these random variables that are defined from X: (a) X / 3 (b) 2X – 100 (c) X + 2 (d) X – X Companies based in the United States that operate in foreign nations must convert currencies in order to pay obligations denoted in those currencies. Consider a company that has a contract that requires it to pay 1,000,000 ...In 13 professional football seasons from 1999 to 2011, kicker David Akers recorded the following results for field goal attempts of various distances. Use the implied percentages as probabilities to answer the following ...
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