Question 322381: According to a recent survey, 35% of American adults say they eat a balanced meal at lest once a day. You interview randomly selected adults and sak whether they ate a balanced meal yesterday. Wha ti sthe probability that the first person to answer yes will be the fourth person you interview.
Is this the correct formula for this question?...i'm trying binomcdf(4, 0.35,1)
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! According to a recent survey, 35% of American adults say they eat a balanced meal at lest once a day. You interview randomly selected adults and sak whether they ate a balanced meal yesterday. Wha ti sthe probability that the first person to answer yes will be the fourth person you interview.
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Is this the correct formula for this question?...i'm trying binomcdf(4, 0.35,1)
No. You are told the order is no,no,no,yes.
cdf supposes the yes can occur at any one of the four positions.
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Ans: P(no,no,no,yes) = 0.65^3*0.35 = 0.0961
Cheers,
Stan H.
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