To find the mean deviation, we need to first calculate the mean of the given set of numbers:
Mean = (5 + 3 + 0 + 7 + 2 + 1) / 6 = 18 / 6 = 3
Next, we need to find the absolute deviation of each number from the mean:
|5 - 3| = 2
|3 - 3| = 0
|0 - 3| = 3
|7 - 3| = 4
|2 - 3| = 1
|1 - 3| = 2
To calculate the mean deviation, we add up these absolute deviations and divide by the number of numbers:
Mean deviation = (2 + 0 + 3 + 4 + 1 + 2) / 6 = 12 / 6 = 2
Therefore, the answer is option (B) 2.0.