The variance of 4 49 10 47 32 28 32 32 32 and 28 is: 194.044444444
371.7666667
The variance of 14 14 20 38 47 48 57 = 317.6667
79
75
3 hours 47 minutes, 28 seconds.
The variance of 30 32 47 57 66 and 79 = 371.7667
371.7666667
For 51 10 19 32 23 47 67: σ=20.2308
The variance of 14 14 20 38 47 48 57 = 317.6667
12 16 20 24 28 32 40 44 47
32 + 47 = 79
79
32 - 47 = -15
32 is 68.09% of 47.
28 - 47 = -19
10 hours 32 - 47 minutes.
The LCM of 47 and 32 is 1504