Question

If you have the following data set {70, 72, 67, 78, 70} and you add 85 to the data set, how much will the overall median increase? *
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Answer 1

Answer: 1

Explanation: The median is just the middle of a dataset, so the median of 67, 70, 70, 72, 78 (sorted from least to greatest) is 70.

if we add 85, and the dataset becomes 67, 70, 70, 72, 78, 85, then the middle is now halfway between 70 and 72, meaning the median is now 71.