Answer:
The class width is 20
Step-by-step explanation:
In a frequency or a relative frequency distribution the class width is calculated as the difference between the lower or upper class limits of consecutive classes. A point to note is that all the categories or classes usually have the same class width.
We use the first two classes to calculate the class width by using their respective upper limits;
Class width = 89 - 69
Class width = 20
Answer:
use mathwy
Step-by-step explanation:
its better for a. expansion
45/9 is 5 it means 1 part is =5
and 5 * 5 is = 25
32 - 25 = 7
its b
Answer:A
Step-by-step explanation:
When graphed it is the only one to semi-complete the pattern