Range: 1 Mark
Mean: 2 Marks
Answer: 1 Mark
(i) Range = Highest observation - Lowest observation
Range = 20.5 - 0.0 = 20.5
(ii) Mean=Sum of all observationTotal number of observation
Mean=0.0+12.2+2.1+0.0+20.5+5.5+1.07
Mean=41.37=5.9
(iii) On Mon, Wed, Thurs, Sat, and Sun the rainfall was less than mean rainfall i.e. 5.9 mm.
⇒ On 5 days the rainfall was less than the mean rainfall.