Test Index

Measures of Central Tendency and Dispersion

Question : 14 of 211

Marks: +1, -0

10,8,-9,-12,15,0,23,-3,-2,-13,-24,28,35, 42

Solution:

Concept:

Median is the middle value when data is arranged in order; for even number of observations, it is the average of the two middle terms.

Explanation:

Arrange the observations in ascending order:

-24, -13, -12, -9, -3, -2, 0, 8, 10, 15, 23, 28, 35, 42

There are 14 observations (even).

The 7th term is

0

and the 8th term is

8

Median =

\frac{0+8}{2} = 4

Answer:

The median is

4

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