Nikki grows 20 tomato plants.
She measures their heights to the nearest centimeter and writes them down.
15 14 12 17 18
11 16 14 21 19
10 16 16 13 17
9 15 20 19 9
Complete the frequency table.

Nikki grows 20 tomato plants She measures their heights to the nearest centimeter and writes them down 15 14 12 17 18 11 16 14 21 19 10 16 16 13 17 9 15 20 19 9 class=