SOLUTION: At a noodles & company restaurant, the probability that a customer will order a nonalcoholic beverage is .44 Find the probability that in a sample of 8 customers, none of the 8

Question 1160697: At a noodles & company restaurant, the probability that a customer will order a nonalcoholic beverage is .44
Find the probability that in a sample of 8 customers, none of the 8 will order a nonalcoholic beverage. (round to the nearest 4 decimal places)
Find the probability that in a sample of 8 customers, at least 5 will order a nonalcoholic beverage. (round to the nearest 4 decimal places)
Find the probability that in a sample of 8 customers, few than 6 will order a nonalcoholic beverage.(round to the nearest 4 decimal places)
Find the probability that in a sample of 8 customers, all 8 will order a nonalcoholic beverage. (round to the nearest 4 decimal places)
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
a. Probability nobody will order a non-A beverage is .56^8=0.0097
d. all 8 will order a non-A beverage is 0.44^8=0.0014
c. fewer than 6:
look at 6,7,8
6:0.0637
7:0.0143
8:0.0014 from above
those add to 0.0794 and the answer is 1- that or 0.9206. Also 2nd VARS binomcdf (.44,8,5)
b. at least 5 is 5,6,7,8
that is 1-P(0-4)
=1-0.7584=0.2416
Or just do binomial pdf for p(5) and add to the three above, for the same answer.
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