Question

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

Answer 1

Answer:

There are modes.

Step-by-step explanation:

21 and 17 because are good numbers

Answer 2

Answer:

No mode

Skills needed: Mode (Frequency)

Step-by-step 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.