What is the mean absolute deviation or NAD of the times we have obstacle course test time and minutes and we have numbers 5678 9101112 and 13 and we have a dot at five a dot at six and a dot at 10 so Mad equals how many minutes

To calculate the Mean Absolute Deviation (MAD), we first need to find the mean of the obstacle course test times.

Mean = (5 + 6 + 7 + 8 + 10 + 11 + 12 + 13) / 8 = 8.75

Next, we find the absolute deviation of each time from the mean:

|5 - 8.75| = 3.75
|6 - 8.75| = 2.75
|7 - 8.75| = 1.75
|8 - 8.75| = 0.75
|10 - 8.75| = 1.25
|11 - 8.75| = 2.25
|12 - 8.75| = 3.25
|13 - 8.75| = 4.25

Now, we find the average of these absolute deviations:

(3.75 + 2.75 + 1.75 + 0.75 + 1.25 + 2.25 + 3.25 + 4.25) / 8 ≈ 2.56

So, the Mean Absolute Deviation (MAD) of the obstacle course test times is approximately 2.56 minutes.