#### Find the mean and the median of all the (positive) factors of 48.

**Solution:**

Positive factors of 48 are

1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Here N = 10 which is even

Mean (x̄) = Ʃ x_{i}/ n

= (1 + 2 + 3 + 4 + 6 + 8 + 12 + 16 + 24 + 48)/10

= 124/10

= 12.4

Median = ½ [10/2 th + (10/2 + 1)th terms]

= ½ [5^{th} + 6^{th} terms]

= ½ (6 + 8)

= 14/2

= 7

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