IndigoLearn

Forums

All Topics Accountancy Auditing Corporate & Other Laws Direct Taxation Indirect Taxation Financial Management Economics Costing Strategic Management Maths & Stats Exams Others AFM Financial Reporting CFA Level I

Binomial distribution

Maths & Stats

Problem no. 20 Is the answer actually 8?? I think the options are wrong.. Pls correct me..

Jaswanth P

CA Inter

★ 3K+

25-May-23 14:05

431

Answers (1)

Best Answer

the points of inflexion are 40 and 60 respectively, then the mean is the midpoint of 40 and 60, which is 50. The standard deviation is the distance from the mean to either point of inflexion, which is 10. The mean deviation of a normal distribution is approximately 0.8 times the standard deviation. So, the mean deviation of this normal distribution is 0.8 x 10 = 8.