Question

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Jack has the following scores on exams in his math class.

81, 87, 93, 89, 61, 81

If he wants to make his performance sound as good as possible, which measure should he use—the mean, the median, or the mode of his exam grades when he talks about how he is doing? Explain.

In you response, make sure to:

calculate the mean,
calculate the median, and
calculate the mode of his exam grades
compare and pick the measure that makes his performance sound as good as possible.

Answer 1

The median, which is 90%.

Explanation:

Mean: sum of (81, 87, 93, 89, 61, 81) / 6 = 82%

Median: Middle number from lowest to highest. Between 87 and 93 so its (87+93)/2 = 90%

Mode: Number that occured most often, 81%