Question: PLEASE ONLY AN EXPERT SOLVE THIS I GOT A MEDIOCRE GRADE FROM THE LAST HW CHEGG EXPERTS SOLVED! THERE IS NO NEED FOR MORE INFORMATION

PLEASE ONLY AN EXPERT SOLVE THIS I GOT A MEDIOCRE GRADE FROM THE LAST HW CHEGG EXPERTS SOLVED!
THERE IS NO NEED FOR MORE INFORMATION WHO EVER WROTE THAT COMMENT PLEASE DONT ANSWER MY QUESTION I KNOW YOU WILL SOLVE IT WRONG.
4) (24pt) In deciding how many customer service representatives to hire and in planning their schedules, it is important for a firm marketing electronic typewriter to study repair times for the machines. Such a study revealed that repair times have approximately an exponential distribution with a mean of 22 minutes. a. Find the probability that a repair time will last less than 10 minutes. b. The charge for typewriter repairs is $50 for each half hour or part thereof. What is the probability that a repair job will result in a charge of $100? c. In planning schedules, how much time should be allowed for each repair so that the chance of any one repair time exceeding this allowed time is only 0.10Step by Step Solution
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