20 plants were measured and their heights were recorded in cm. Here are the heights: draw a frequency polygon to represent the data
(also, I just need b, I've done A)
![20 plants were measured and their heights were recorded in cm Here are the heights draw a frequency polygon to represent the data also I just need b Ive done A class=](https://us-static.z-dn.net/files/d99/fa098b7bcd0ab97d2a2dd6a4cacc8a3c.png)