Quiz: Week 5 Quiz Time Remaining: 01:5621 Submit Quiz This Question: 4 pts | 3af

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Quiz: Week 5 Quiz Time Remaining: 01:5621 Submit Quiz This Question: 4 pts | 3af 18 (1 complete) This Quiz: 60 pts possible In a sample of 1200 U S adults, 212 dine out at a resaurant more than once per week Two U S adats are selected at random from the population of all U.S aduts without replacement Assurming the sample is representative of al U.S adults, complete parts (a) through (d) The probability that neither adult dines out more than once per week is Round to three decimal places as needed ) (c) Find the probability that at least one of the two adults dines out more than once per week The probability that at least one of the two aduits dines out more than once per week is Round to three decimal places as needed) (d) which of the events can be considered unusua? E plan select al that apply A. None of these events are unusual B. The event n part (c) is unusual because its probabity is less than or equal to 0 05 C. The event n part (b)is unusual because ts probabitysless than or equal to 005 D. The event in part (a) is unusual because its protabaty is less than or equal to005 Click to select your answer(s)

Explanation / Answer

The probability that neither adult dines out more than once per week

Solution: No of adults neither dine out more than once per week = 1200-212 = 988

Prob = (988/1200)*(987/1199) = 975156/1438800 = 0.6778

c) Probability that at least one of the two adults dines out more than a week = 1-0.6778 = 0.3222

d) None of the events are unusual

d)

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