# SOLUTION: There is a 90% chance that a pizza place will make a delivery in less than 30 min. what is the probability that in a sample of 10 pizzas ordered from a certain pizza place at diffe

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 Click here to see ALL problems on Probability-and-statistics Question 441315: There is a 90% chance that a pizza place will make a delivery in less than 30 min. what is the probability that in a sample of 10 pizzas ordered from a certain pizza place at different times of the day atleast 7 will be delivered in less than 30 min?Answer by stanbon(57967)   (Show Source): You can put this solution on YOUR website!There is a 90% chance that a pizza place will make a delivery in less than 30 min. what is the probability that in a sample of 10 pizzas ordered from a certain pizza place at different times of the day at least 7 will be delivered in less than 30 min? ----------------- Binomial Problem with n = 10 ; p = 0.9 ---- P(7<= x <=10) = 1-P(0<= x <=6) = 1 - binomcdf(10,0.9,6) = 1 - 0.01280 --- = 0.9872 ============= Cheers, Stan H.