Mocks don't measure how much you know. They measure how you behave under pressure. Use them for that.

Statistics — quick quiz

4 CDS-pattern questions on Statistics. Instant scoring and solutions, no signup — see where you stand in a few minutes.

Question 1 of 4

Easy

The marks obtained by 5 students are 20, 25, 30, 35, and 40. What is the mean of their marks?