Answer:
-7.5
Step-by-step explanation:
The median is all the numbers put in order, then the middle number
Here is what that looks like:
2, -1, 11, -18, -4, 13, -11, -17, -17, -17
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-18, -17, -17, -17, -11, -4, -1, 2, 11, 13
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-18, -17, -17, -17, -11, -4, -1, 2, 11, 13
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-18, -17, -17, -17, -11, -4, -1, 2, 11, 13
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-18, -17, -17, -17, -11, -4, -1, 2, 11, 13
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Since we have two numbers in the middle
we add them together and divide by 2
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-11 + -4 = -15 / 2 = -7.5
