Question

a teacher put all her students quiz scores up on the representation below.
quiz scores
bar graph with x-axis labeled points (40-49, 50-59, 60-69, 70-79, 80-89, 90-99) and y-axis labeled frequency (number of students) with bars: 40-49: 4, 50-59: 5, 60-69: 6, 70-79: 2, 80-89: 7, 90-99: 2
what was the most common score interval?
answer
attempt 1 out of 2
dropdown points
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Explanation:

Step1: Identify the tallest bar

The bar graph shows the frequency (number of students) for each score interval. We need to find the interval with the highest frequency (tallest bar).
Looking at the bars: 40 - 49 has height 4, 50 - 59 has height 5, 60 - 69 has height 6, 70 - 79 has height 2, 80 - 89 has height 7, 90 - 99 has height 2.

Step2: Determine the interval

The tallest bar is for the 80 - 89 interval, as it has a height of 7, which is the highest frequency among all intervals.

Answer:

80 - 89