The numbers of trading cards owned by 8 middle-school students are given below. (Note that these are already ordered from least to greatest.)
306, 416, 437, 463, 547, 555, 574, 686
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Suppose that the number 686 from this list changes to 582. Answer the following.
(a) What happens to the median?
It decreases by O
It increases by
It stays the same.
(b) What happens to the mean?
It decreases by
It increases by
It stays the same.