Question

From past data we know that the mean time between arrivals at the Family Fun Center ticket booth in Tukwila on Saturday afternoon is 1.5 minutes. If the distribution follows an Exponential Distribution pattern, what is the probability that time between arrivals will be less than 1 minute? Put your formula inputs, calculations and charts (if needed) anywhere on the spreadsheet, but put your final answer in cell B8.

P(x<=1) =

Please use excel formula

Answer 1

here this is exponential distribution with parameter =1/1.5

P(X<=1) =expondist(1,1/1.5,true)=0.4866

(excel formula: =expondist(1,1/1.5,true) has been used)