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ISEE Upper Level
Mathematics Achievement

Statistics: Finding the Mean of Test Scores

Very Hard Data Analysis And Probability Statistics

A researcher collected the scores from a standardized test taken by a sample of 60 students. The test scores were as follows:

45, 48, 52, 52, 54, 55, 55, 58, 60, 62, 65, 65, 67, 68, 70, 72, 74, 76, 78, 78, 80, 80, 82, 84, 85, 86, 88, 90, 90, 92, 93, 94, 94, 95, 95, 96, 98, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100.

The researcher wants to calculate the median and the mode of the test scores. What is the mean of this set of scores?

Hint

Submitted7.4K
Correct5.5K
% Correct75%