Recent uncertain economic conditions have forced many people to change their spending habits. In a recent telephone poll of 1000 adults, 629 stated that they were cutting back on their daily spending. Suppose that 322 of the 629 people who stated that they were cutting back on their daily spending said that they were cutting back “somewhat” and 97 stated that they were cutting back “somewhat” and “delaying the purchase of a new car by at least 6 months”. If one of the629 people who are cutting back on their spending is selected at random, what is the probability that he/she is delaying the purchase of a new car by at least 6 months given that he/she is cutting back on spending “somewhat?”
Answer to relevant QuestionsSuppose that 20% of all adults in a small town live alone, and 8% of the adults live alone and have at least one pet. What is the probability that a randomly selected adult from this town has at least one pet given that this ...Find P(A or B) for the following. a. P(A) = .66, P(B) = .47, and P(A and B) = .33 b. P(A) = .84, P(B) = .61, and P(A and B) = .55 The probability that an adult has ever experienced a migraine headache is .35. If two adults are randomly selected, what is the probability that neither of them has ever experienced a migraine headache? An average of 6.3 robberies occurs per day in a large city. a. Using the Poisson formula, find the probability that on a given day exactly 3 robberies will occur in this city. b. Using the appropriate probabilities table ...A high school history teacher gives a 50-question multiple-choice examination in which each question has four choices. The scoring includes a penalty for guessing. Each correct answer is worth 1 point, and each wrong answer ...
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