Find the required probabilities using theexponential density function

f(t) =(1/?)^e^?t/?,[0,?).

The waiting timet(in minutes) for service at the checkout at a grocery store is exponentially distributed with?=4.

Find the probabilities of waiting less than5minutes,more than5minutesbut less than7minutes,and at least5minutes.(Round your answers to three decimal places.)

(a) less than5minutes

(b) more than5minutes but less than7minutes

(c) at least5minutes

Find the required probabilities using the exponential density function At ) = -e-t/x, [0, co). The waiting time t (in minutes) for service at the checkout at a grocery store is exponentially distributed with A = 4. Find the probabilities of waiting less than 5 minutes, more than 5 minutes but less than 7 minutes, and at least 5 minutes. (Round your answers to three decimal places.) (a) less than 5 minutes (b) more than 5 minutes but less than 7 minutes (c) at least 5 minutes