Problems and Solutions from CMI Entrance 2022. Learn More

This year Cheenta Statistics Department has done a survey on the scores in each of the sections along with the total score in IIT JAM MS. Here is the secret for you!

We have normalized the score to understand in terms of percentage.

There are three questions, we ask

The general performance for the IIT JAM MS 2021 exam.

How did the students answer questions in the exam? (General)

What did the toppers do differently? What mistakes did the low scorers do? (Genera;)

General Overview for IIT JAM MS

Total Score in IITJAM 2021 MS

Normal QQPlot for the data (Umm… it kinda follows normal!)

Summary

Total Score in IITJAM 2021 MS ~ Normal(35.8, 12.7²)

Section A

Normal QQPlot

Summary

% in IITJAM 2021 MS Section A ~ Normal (38.6 15.7²)

Section B

Normal QQ Plot (it doesn’t look like normal!)

Histogram (It looks like it follows exponential distribution)

Summary

% in IITJAM 2021 MS Section B~ Exponential(Mean = 30.18)

Section C

Normal QQPlot

Summary

% in IITJAM 2021 MS Section C~ Normal (35.1, 18.1²)

Question 2:

How did the students in general answer the questions?

What is the percentage of marks the people scored in section A?

Summary

Mean = 53.37 Standard Deviation = 11.11

What is the percentage of marks the people scored in section B?

Summary

Mean = 16.67 Standard Deviation = 12.14

What is the percentage of marks the people scored in section C?

Summary

Mean = 30.11 Standard Deviation = 12.68

Question 3:

What mistakes did the low scorers do? What did the toppers do differently?