Adding the values and dividing by the number of values, it is found that the average diameter of these screws is of 0.1913''.
The mean of data-set is the sum of all observations divided by the number of observations.
In this problem:
Hence, the average diameter is given by:
[tex]M = \frac{0.193 + 0.192 + 0.189}{3} = 0.1913[/tex]
The average diameter of these screws is of 0.1913''.
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