Question

a teacher put all her students quiz scores up on the representation below. quiz scores what was the most common score interval?

Explanation:

Step1: Understand the bar graph

The bar graph shows the frequency (number of students) for each score interval.

Step2: Identify the tallest bar

The tallest bar represents the most common score interval. Looking at the graph, the bar for the 80 - 89 interval has a frequency of 7, which is higher than the frequencies of the other intervals (4 for 40 - 49, 5 for 50 - 59, 6 for 60 - 69, 2 for 70 - 79, and 2 for 90 - 99).

Answer:

The most common score interval is 80 - 89.