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25 February, 09:03

What is the median of the data?

20, 19, 13, 23, 16, 15, 17, 17, 15, 15, 22, 19

A.

17

B.

15

C.

18

D.

16

+1
Answers (1)
  1. 25 February, 11:01
    0
    20, 19, 13, 23, 16, 15, 17, 17, 15, 15, 22, 19

    To find the Median, place the numbers in value order and find the middle.

    13, 15, 15, 15, 16, 17, 17, 19, 19, 20, 22, 23

    There are 12 numbers and so we don't have just one middle number, we have a pair of middle numbers:

    13, 15, 15, 15, 16, (17, 17), 19, 19, 20, 22, 23

    To find the value halfway between them, add them together and divide by 2:

    17 + 17 = 34

    34 : 2 = 17

    So the median is A) 17.
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