What is the mean, median, mode and range of the following numbers?

-10, 20,-10

Mean

The mean is the average of the numbers.

Calculate the mean: Add up all the numbers, then divide by how many numbers there are.

-10 + - 10 = - 20 + 20 = 0

0 / 3 = 0

Mean = 0

Median

To find the median, the data should be arranged in order from least to greatest. Then, find the most middle number.

-10, - 10, 20

As you can see, - 10 is the most middle number.

Median = - 10

Mode

The mode is the number that occurs most frequently in the set of numbers.

-10, - 10, 20

As you can see, - 10 occurs more frequently because there are two of them.

Mode = - 10

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