Question

Here are the numbers of children in 9 elementary school classes.

21, 25, 24, 22, 14, 20, 17, 15, 23
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

No mode

Skills needed: Mode (Frequency)

Explanation:

1) The mode of a set of numbers is the number that appears the greatest number of times.

Example: In the set
`2,4,8,8` --->
`8` is the mode since 8 appears 2 times, while the other numbers only appear once.

There are 2 special cases

---> One is where there is more than one mode:
`5,5,2,3,3` (5 and 3 are both modes in this set)

---> Another is where there is no mode (
`1,2,3,4`) ---> No number appears more than the other numbers.

We are given a dataset of:
`21,25,24,22,14,20,17,15,23` and have to find the mode.

2) As you can see, there are no numbers repeated (all of the numbers only appear once)

This means there is no mode.

Answer 2

There are modes.

Explanation:

21 and 17 because are good numbers