Mathematics, 04.07.2020 14:01 roseemariehunter12
In a sample of 1200 U. S.​ adults, 191 dine out at a resaurant more than once per week. Two U. S. adults are selected at random from the population of all U. S. adults without replacement. Assuming the sample is representative of all U. S.​ adults, complete parts​ (a) through​ (d). ​Required:a. Find the probability that both adults dine out more than once per week. b. Find the probability that neither adult dines out more than once per week. c. Find the probability that at least one of the two adults dines out more than once per week. d. Which of the events can be considered unusual? Explain.
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Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.
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In a sample of 1200 U. S.​ adults, 191 dine out at a resaurant more than once per week. Two U. S....
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