What does the sum of heights of all rectangles represent?

What does the heights of rectangles represent in histofram?

What does a wave represent ?

When does growth in height stops?

What does the pyramid of biomass represent?

Fill in the blank:In a bar graph the scale is 1 cm= 200 pens production. The length of the rectangle which represents 1900 pens is_____cm.

State whether true or false: All the rectangles are squares (T/F)

What does this diagram represent?

What does the given figure represent?

What does the pyramid of number represent?