Question Help In a sample of 900 U.S adults, 215 dine out at a resaurant more th

Question

Question Help In a sample of 900 U.S adults, 215 dine out at a resaurant more than once per week. Two US adults all U S. adults without replacement Assuming the sample is representative of all U.S adults, complete parts (a) through (d) la) Find the probability that both adults 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 nelther adult dines out more than once per week The probabilty that nether adult dines out more than once per week is Round to three decimal places as needed.) c) Find the probablity that at least one of the two aduts dines 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 unusuat? Explain Select all that appty A. The event in part (a) is unusual because ts probalbility is less than or equal to 0.05 B. None of these events are unusual C. The event in part (b) is unusual because its probability is less than or equal to 0 05 D D. The event in part (c) is unusual because its probability is less than or equal to 0 05 Click to select your answer(s) 2 5 6 7 8 0

Explanation / Answer

a)

P(both dine out for more than once) =(215/900)*(215/900)=0.057

b)

P(neither dine out ) =(1-215/900)*(1-215/900) =0.579

c)P(at least one) =1-P(neither) =1-0.579 =0.421

d)

option b is correct

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