Question

gemma is creating a histogram based on the table below.

salary range	number of people
$20,000 - $39,999	30
$40,000 - $59,999	35

which scale can she use for the vertical axis such that the difference in the heights of the bars is maximized?
0 - 50
0 - 40
10 - 50
25 - 40

Explanation:

Step1: Analyze data range

The number of people values are 40, 30, 35. The maximum value is 40 and the minimum is 30.

Step2: Evaluate each option

• Option 0 - 50: Range is 50. Bars will be relatively short.
• Option 0 - 40: Exactly fits the data range. Bars will be maximally tall relative to the scale.
• Option 10 - 50: Range is 40, but starts at 10, making bars shorter.
• Option 25 - 40: Range is 15, but starting at 25 will make bars very short.

Answer:

0 - 40