The actual delivery time from Giodanni’s Pizza is exponentially distributed with a mean of 20 minutes. a. What is the probability that the delivery time will exceed 30 minutes? b. What proportion of...

The actual delivery time from Giodanni’s Pizza is exponentially distributed with a mean of 20 minutes.

a. What is the probability that the delivery time will exceed 30 minutes?

b. What proportion of deliveries will be completed within 20 minutes?

Answered Same DayDec 25, 2021

Answer To: The actual delivery time from Giodanni’s Pizza is exponentially distributed with a mean of 20...

David answered on Dec 25 2021

116 Votes

Let X is a random variable shows the actual delivery time
  /20
1
, 0
20
xf x e x 
a)
The probability that the delivery time will exceed 30 minutes is
     
 
30
/20
30
/20
30
30
1
20
0.2231
x
x
P X f x d x
e d x
e





 

   


 ...

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The actual delivery time from Giodanni’s Pizza is exponentially distributed with a mean of 20 minutes. a. What is the probability that the delivery time will exceed 30 minutes? b. What proportion of...

Answer To: The actual delivery time from Giodanni’s Pizza is exponentially distributed with a mean of 20...

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