Given the following data set, calculate the mean: 4.9, 5.6, 6.2, 6.6, 6.6, 6.8, 7.8, 7.8, 8.9, 9.6, 9.7, 10.2, 10.2, 10.8, 12.5, 13.2, 14.5, 16.7

Here are the calculations for the given data:

First, let's list the data in ascending order:

$$4.9, 5.6, 6.2, 6.6, 6.6, 6.8, 7.8, 7.8, 8.9, 9.6, 9.7, 10.2, 10.2, 10.8, 12.5, 13.2, 14.5, 16.7$$

The number of data points is $n = 18$.

2.1.1 Mean

Step 1: Sum all the data points.

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