Question

Here are the numbers of children in 12 elementary school classes.

20, 16, 19, 19, 17, 16, 20, 16, 18, 18, 18, 19
Find the modes of this data set.
If there is more than one mode, write them separated by commas.
If there is no mode, click on "No mode."

Answer 1

18

Explanation:

Re-arrange

16 16,16,17,18,||18,18||,19,19,19,20,20

Find the middle number

i.e ( 18+18) /2

Answer 2

18, 19(which has two) 20(has two)

Explanation:

Just find the ones that appear more than one time.