Question

The number of students in 10 kindergarten classes is shown below

20, 18, 21, 18, 22, 24, 18, 23, 23, 24,

What is the median number of students in the kindergarten classes?

Answer 1

Put each number from least to greatest.
In that case it would be:
18,18,18,20,21,22,23,23,24,24
Start scratching off 1 number of each side until there is a center
In this case:
21 and 22 are the center numbers so you would add both and divide by 2.

21+22 = 43 / 2 = 21.5

Answer 2

21.5

Explanation:

Median = Middle

Arrange the numbers:

18, 18, 18, 20, 21, 22, 23, 23, 24, 24

There is no exact middle, so

21 + 22 = 43

43 ÷ 2 = 21.5