Saturday, 21 December 2013

STATISTICS A5


The masses of 10 coconuts in kilograms were recorded as follows:
5, 8, 4, 3, 6, 7, 2, 5, 1,  and 1. Calculate the median of these data.

Solution

Arrange the data in order of magnitude starting with the smallest.

1, 1, 2, 3,  4, 5 ,5,  6, 7, 8

There are eight data so far. We get the two data in the middle which are 4 and 5.

Median can be calculated by finding the average of the two middle values.

So, median  = 4+ 5
                         2
                      = 4.5

Hence median is 4.5.



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