Question

average monthly electric cost
how could the graph be redrawn so that the difference in monthly electric cost does not appear as great?
the scale on the y - axis could be changed to 0 - 150.
the scale on the y - axis could be changed to 100 - 120.
the interval on the y - axis could be changed to count by 1s.
the interval on the y - axis could be changed to count by 20s.

Explanation:

Step1: Analyze the effect of scale range

A larger scale range (like \(0 - 150\)) compresses the visual differences between the bars. Currently, the \(y -\)axis range is likely smaller (judging from the values \(95 - 125\) shown). If we expand the \(y -\)axis scale to \(0 - 150\), the relative height differences of the bars (which represent cost differences) will look smaller.

Step2: Analyze other options

• If the scale is \(100 - 120\) (Option 2), it will magnify the differences as the range is narrow.
• If the interval is \(1s\) (Option 3), it will show more detail but not reduce the visual difference perception.
• If the interval is \(20s\) (Option 4), for values in the \(95 - 125\) range (e.g., \(95,115\)), the interval is too large and the graph will be inaccurate.

Answer:

The scale on the \(y -\)axis could be changed to \(0 - 150\).