Answer:
It is actually not any of the answers. It is actually 0.76
Step-by-step explanation:
Mean = (40.55 + 41.51 + 42.01 + 38.76 + 36.32 + 34.28 + 35.38 + 37.48 + 40.87 + 48.32 + 41.59 + 42.71)/12 = 39.98 seconds.
In this case, the outlier comes to be the data: 48.32. If we don't consider that data point, the mean equals:
Mean = (40.55 + 41.51 + 42.01 + 38.76 + 36.32 + 34.28 + 35.38 + 37.48 + 40.87 + 41.59 + 42.71)/11 = 39.22
The difference is: 39.98 - 39.22 = 0.76
