What is the mean of -3, -8, 12, -15, 9

The mean of the -3, -8, 12, -15, 9 is -1

The mean of a data can be obtained by dividing the sum of the data by the number of data i.e

From the question given above, we obtained the following data:

-3, -8, 12, -15, 9

The Mean of the above data can be obtained as follow:

Sum of data = -3 + (-8) + 12 + (-15) + 9

= -3 - 8 + 12 - 15 + 9

= -5

Number of data = 5

Therefore, the mean of the data is -1

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Step-by-step explanation:

Step 1:  Combine all of the numbers

Step 2:  Find the total amount of numbers

5 numbers

Step 3:  Find the mean/average

Sum of numbers / Total amount of numbers

step-by-step explanation:

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