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

Statistics — quick quiz

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

Question 1 of 5

Medium

A shopkeeper recorded the number of customers visiting his shop over 8 days: 25, 30, 28, 35, 22, 30, 40, 26. What is the range of the data?