The weekly overtime work of an employee for a software company follows a
Normal distribution with mean 125 minutes and standard deviation 30
minutes.
(i) Calculate the probability that a randomly selected employee has worked
overtime more than 170 minutes. (2 marks)
(ii) Calculate the probability that a randomly selected employee has worked
overtime between 75 and 150 minutes. (3 marks)
(iii) Find the number of minutes within which 90% of the employees work
overtime.
Please indicate your views on the correct answer to question. Each of your comments will be evaluated by our moderators and correct answers will be shared.