This Question: 4 pts 30f 18 (0 complete) This Quiz: 60 pts possible pt In a U.S.

Question

This Question: 4 pts 30f 18 (0 complete) This Quiz: 60 pts possible pt In a U.S. adults are selected at random from the popuiation ot al U.s adults without replacement. Assuming the sample is representative of at U.s adults, complete parts (a) through (d) (a) Find the probabilily that both aduts dine out more than once per week The probability that both adults dine out more than once per week is Round to three decimal places as needed ) (b) Find the probability that nether adult dnes out more than once per week The probablity that ne her adult dnes out more than once per week is Round to three decimal places as needed) (c) Find the probabilty that at least one of the two aduits dnes out more than once per week The probability that at least one of the two adults dines out more than once per week is (Round to three decimal places as needed) (d) which of the events can be considered unusual? Explain Select al that apply Click to select your answer(s)

Explanation / Answer

Ans:

p=212/1200=0.177

a)Probability that both dine out more than once a week=(0.177)2=0.031

b)Probability that neither dine out more than once a week=(1-0.177)2=0.678

c)Probability that atleat one dine out more than once a week=1-P(none dine out)

=1-0.678

=0.322

d)Event of both adults dining out is unusual as Probability of both dine out is =0.031,which is less than 0.05

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