The table below gives the rainfall during one week of September 2015 in various districts of Kerala.
Calculate the mean and median rainfall in Kerala during this week. Why is the median less than mean?
let’s first write the data in ascending order
13.5,20.5,30.5,33.5,45.5,50.3,53.4,56.3,56.4,56.9,56.9,66.7,
70.6,89.0
there are total 14 values, so the two central values are 7th and 8th
term.
⇒ 
⇒ median = 54.85
mean is the average of all the values
⇒ 
⇒ 41.9
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