Question

The monthly rainfall in Bangalore for 6 months is given as:
800 mm, 570 mm, 500 mm, 710 mm, 420 mm, 900 mm.
What is the average rainfall for those 6 months?
(2 marks)

Answer 1

Given data: 800 mm, 570 mm, 500 mm, 710 mm, 420 mm, 900 mm.
⇒ Total rainfall = 800 + 570 + 500 + 710 + 420 + 900 = 3900 mm
(0.5 mark)

Total number of months = 6

$\therefore$ Average rainfall = $\frac{\text{Total rainfall}}{\text{Number of months}}$

= $\frac{3900}{6}$
(1 mark)

= $650mm$
(0.5 mark)