The probability that the first customer arrives in the first 2 minutes i

Question

A model for the amount of time it takes for the first customer to arrive at a store in the morning is modeled by the exponential distribution and the function f(x)equals
one seventh e Superscript negative x divided by 7
.
Find the probability that the first customer arrives in the first 2

minutes.
The probability that the first customer arrives in the first 2

minutes is nothing

Answer 1

you want to compute (1/7)e^-(x/7)  when x = 2.

 

I obtained P(2) = 0.10735