1.

The annual salaries of workers in a large manufacturing factory are normally distributed with a mean of Rs. 48,000 and a standard deviation of Rs. 1500. Find the probability of workers who earn between Rs. 35,000 and Rs. 52,000.(a) 64%(b) 76.2%(c) 42.1%(d) 20%I got this question in unit test.My question is from Probability Distribution topic in section Discrete Probability of Discrete Mathematics

Answer»

Right option is (c) 42.1%

The best EXPLANATION: For x = 45000, Z = -2 and for x = 52000, z = 0.375. Now, area between z = -2 and z = 0.375 is EQUAL to 0.421 or 42.1% EARN between Rs. 45,000 and Rs. 52,000.



Discussion

No Comment Found

Related InterviewSolutions