Questions: For the following set of numbers, find the mean. 13,15,26,11,26,16,12 The mean is .

Solution Steps

To find the mean of a set of numbers, you need to sum all the numbers in the set and then divide by the total number of elements in the set.

1. Sum all the numbers in the set.
2. Divide the sum by the number of elements in the set to get the mean.

First, we calculate the sum of the numbers in the set: \[ 13 + 15 + 26 + 11 + 26 + 16 + 12 = 119 \]

Next, we count the number of elements in the set, which is: \[ n = 7 \]

Now, we find the mean by dividing the sum by the number of elements: \[ \text{Mean} = \frac{119}{7} = 17.0 \]

Final Answer