Mean, median, mode, and range
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TACHS Math › Mean, median, mode, and range
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1
Over the course of a grading period, Kim had a total of 
CORRECT
Explanation
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 
2
Give the median of the following six scores:
83, 87, 99, 90, 82, 84
CORRECT
Explanation
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:
