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Ivan said that the mean of -18, -16, +11, and +15 is positive. Without calculating the value of the mean, Norah disagreed with him. How did she know that the mean is not positive?
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Ivan said that the mean of -18, -16, +11, and +15 is positive. Without calculating the value of the mean, Norah disagreed with him. How did she know that the mean is not positive?

User EnduroDave
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Answer:

Explanation:

The middle of -16 and 11 is a negative number and the middle of -18 and 15 is a negative number. so it is weighted more to the negative numbers

User Monkey
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