To find the average of the numbers 10, 12, 14, 13, 10, 15, 11, and 12, you first add them together and then divide by the number of values.
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Add the numbers: \[ 10 + 12 + 14 + 13 + 10 + 15 + 11 + 12 = 10 + 12 = 22 \] \[ 22 + 14 = 36 \] \[ 36 + 13 = 49 \] \[ 49 + 10 = 59 \] \[ 59 + 15 = 74 \] \[ 74 + 11 = 85 \] \[ 85 + 12 = 97 \]
So, the sum is 97.
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There are 8 numbers in total.
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Now, divide the sum by the number of values: \[ \text{Average} = \frac{97}{8} = 12.125 \]
Therefore, the average of the numbers is 12.125.