Mathematics

Madison Sweeney

28 November, 13:33

Mrs. Alberts has taught seventh grade math for thirty years. Every year she calculates and records the class average on the final exam. The following dot plot represents these average scores from the past thirty years.

What percent of the scores lie within one mean absolute deviation (either way) of the mean? Round to the nearest percent and express your answer as a numerical value.

Note: Use the rounded mean and mean absolute deviation.

-a0%