The one that appears most

A shop sold seven pairs of shoes. Sizes: 5, 6, 6, 7, 6, 8, 7. Which size should the shop buy most of?

The shop should buy most of size 6.

Count how often each value appears. The value that appears most often is the mode.

Size 6 appears three times. The mode is 6.

Two piles can tie, with the same height. Runs in each of five overs: 4, 4, 5, 6, 6. The modes are 4 and 6.

Sometimes nothing repeats. Tickets numbered 3, 5, 8, 9 have no mode.

Try the lab to finish this lesson.