Question

The range of the following data is

Age	No. of. workers
20 - 30	56
30 - 40	39
40 - 50	42
50 - 60	17

Options

• 53

• 30

• 40

• 12

Answer 1

40

Explanation:

Upper limit of the highest class (L) = 60

Lower limit of the lowest class (S) = 20

∴ Range = L - S = 60 - 20 = 40