Question

The statewide results of a standardized math test had a normal distribution and a mean of 70. Mr. Smith's students took the same test and the graph above depicts their results. What does the mean score of Mr. Smith's class suggest about how well his students are performing relative to the state scores? What does the distribution of scores in Mr. Smith's class suggest about how well his students are performing relative to the state scores?

Answer 1

Based on a mean score of 70, we can deduce that the students performed below average with respect to the state scores.

What is a mean?

A mean can be defined as a ratio of the sum of the total number in a data set (population) to the frequency of the data set.

This ultimately implies that, a mean score is an average score and it can be calculated by dividing the total number of scores obtained by total number of students that took an examination (test).

In conclusion, we can deduce that the students performed below average with respect to the state scores that had a normal distribution and a mean of 70.

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