A topic you 'somewhat know' is a topic you don't know yet. Be honest about your weak areas.

Statistics (Class 10) — quick quiz

2 UP JEECUP-pattern questions on Statistics (Class 10). Instant scoring and solutions, no signup — see where you stand in a few minutes.

Question 1 of 2

Easy

The mean of 5 observations is 15. If one observation 20 is replaced by 30, what is the new mean?