Find me mu 5. The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows: Mon Tue Fri Wed Thu Day Sat Sun Rainfall (in mm) 0.0 12.2. 2.1 0.0 20.5 5.3 1.0 (i) Find the range of the rainfall from the above data. (ii) Find the mean rainfall for the week. (iii) On how many days was the rainfall less than the mean rainfall.
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Answer:
1) range = highest value - lowest value
therefore 20.5 - 0.0
range = 20.5
2) mean = sum of observation ÷ number of observation
mean = 0.0 + 12.2 + 2.1 +0.0+20.5+5.3+1.0 ÷ 7
mean = 41.1 ÷7
mean = 5.87142
3) mean rainfall = 5.87142
less than mean rainfall = 5 days
Hope my answer helps you ,
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