Practice Test · Class 9

How Quantities Combine: Understanding Data

10 questions randomised from the chapter. Type each final answer and submit to see your score.

00:00

0/7 attempted

Range of

12, 5, 18, 3, 22, 9

Mode of

1, 2, 2, 3, 4, 2, 5

Median of

5, 2, 6, 3, 8, 1, 4, 9

(8 values).

Mean of

10, 20, 30, 40

Class-mark of interval

20

30

Mean of

f_i x_i

where

x = (10, 20, 30), f = (2, 3, 5)

Median of

2, 6, 4, 8, 10