Question:
The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows:
(i) Find the range of the rainfall in the above data.
(ii) Find the mean rainfall for the week.
(iii) On how many days was the rainfall less than the mean rainfall.
The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows:
(i) Find the range of the rainfall in the above data.
(ii) Find the mean rainfall for the week.
(iii) On how many days was the rainfall less than the mean rainfall.
(i) Find the range of the rainfall in the above data.
(ii) Find the mean rainfall for the week.
(iii) On how many days was the rainfall less than the mean rainfall.
Updated On: Dec 8, 2023
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Solution and Explanation
(i) Range = (20.5 - 0.0) mm
= 20.5 mm
(ii) Mean rainfall = \(\frac{(0.0 + 12.2 + 2.1 + 0.0 + 20.5 + 5.5 + 1.0) }{7}\) = \(\frac{41.3}{7}\) = 5.9 mm
(iii) For 5 days (i.e., Monday, Wednesday, Thursday, Saturday, and Sunday), the rainfall was less than the average rainfall.
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