a-histogram-is-constructed-with-class-boundaries-0-10-10-20-20-30-and-frequencie

Question

A histogram is constructed with class boundaries 0-10, 10-20, 20-30, and frequencies 4, 7, 9. If the class width is changed to 20, what will the new class boundaries be?

Accepted Answer

0-20, 20-40

Answer

0-10, 10-20, 20-30

Answer

0-15, 15-30

Answer

0-30