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Question

The weights of 10 students (in kilograms) are:

36, 45, 31, 52, 35, 40, 55, 60, 38, 44

Find the median weight. [2 MARKS]

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Solution

Concept:1 Mark
Application: 1 Mark

Arranging the weights in an ascending order, we have:

31, 35, 36, 38, 40, 44, 45, 52, 55, 60

Here, n = 10, which is even

median weight = average of (102)th and (102+1)th terms

= average of 5th and 6th terms

=12(40+44)kg=842kg=42kg

Hence, the median weight is 42 kg.

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