TACHS Math : Statistics

Study concepts, example questions & explanations for TACHS Math

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Example Questions

Example Question #1 : Statistics

Give the median of the following six scores:

83, 87, 99, 90, 82, 84

Possible Answers:

Correct answer:


To find the median of a group of scores, first, arrange the scores from least to greatest:

There are an even number of scores, so the median is the mean of the two scores that fall in the middle, which are noted in red above. Add the scores and divide by two:


Example Question #1 : Mean, Median, Mode, And Range

Over the course of a grading period, Kim had a total of  tests in her math class. She achieved scores of  on her tests. What is the average of her test scores?

Possible Answers:

Correct answer:


Recall how to find the average of a set of numbers:

Thus, we can write the following to solve for the average of Kim's test scores:

Kim has a  as her test score average.

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