In a histogram, the bar for the interval 15-19 would extend from which values?

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Multiple Choice

In a histogram, the bar for the interval 15-19 would extend from which values?

Explanation:
In a histogram, when you have a class interval that covers whole integers like 15–19, the bars are drawn with boundaries halfway between consecutive integers so that each bar represents all values from the previous half-integer boundary to the next half-integer boundary. For 15–19, the left edge is halfway between 14 and 15, which is 14.5, and the right edge is halfway between 19 and 20, which is 19.5. So the bar for this interval extends from 14.5 to 19.5, giving a width of 5 units. This placement keeps adjacent bars touching and non-overlapping. Other boundary choices would place edges at 15.0–19.0 or 15.5–18.5, which misalign with the standard half-integer boundaries used for integer data and would distort how the interval is represented.

In a histogram, when you have a class interval that covers whole integers like 15–19, the bars are drawn with boundaries halfway between consecutive integers so that each bar represents all values from the previous half-integer boundary to the next half-integer boundary. For 15–19, the left edge is halfway between 14 and 15, which is 14.5, and the right edge is halfway between 19 and 20, which is 19.5. So the bar for this interval extends from 14.5 to 19.5, giving a width of 5 units. This placement keeps adjacent bars touching and non-overlapping.

Other boundary choices would place edges at 15.0–19.0 or 15.5–18.5, which misalign with the standard half-integer boundaries used for integer data and would distort how the interval is represented.

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