A histogram shows bars gradually decreasing from left to right. What does this indicate about the distribution?

A histogram shows bars gradually decreasing from left to right. What does this indicate about the distribution?

• A. There are more low scores than high scores
• B. There are more high scores than low scores
• C. Uniform distribution
• D. Bimodal distribution

Answer: (A)

In a histogram, the height of each bar shows how often values occur, and the x-axis runs from low to high values from left to right. If the bars are tallest on the left and gradually become shorter toward the right, most observations are at the low end of the scale and there are fewer observations at higher values. So there are more low scores than high scores. It isn’t uniform, since the bar heights aren’t the same, and it isn’t bimodal, since there isn’t a second peak.

In a histogram, the height of each bar shows how often values occur, and the x-axis runs from low to high values from left to right. If the bars are tallest on the left and gradually become shorter toward the right, most observations are at the low end of the scale and there are fewer observations at higher values. So there are more low scores than high scores. It isn’t uniform, since the bar heights aren’t the same, and it isn’t bimodal, since there isn’t a second peak.