Question

without making any calculations, which data set has the smallest standard deviation?
1, 1, 2, 2, 3, 3
1, 3, 5
0, 1, 5, 6, 9, 10
1, 1, 1, 1, 2, 2, 2, 2

Explanation:

Standard deviation measures data - point dispersion from the mean. A smaller spread of data points around the mean results in a smaller standard deviation. The set 1, 1, 1, 1, 2, 2, 2, 2 has the least spread as most of the values are clustered closely around 1 and 2.

Answer:

1, 1, 1, 1, 2, 2, 2, 2