1 pt Data set A Data set B Data set C Above are three differ

(1 pt)
Data set A:

Data set B:

Data set C:

Above are three different data sets. Without calculating anything, decide which set A, B, or C has the smaller standard deviation. Just enter the letter of the data set as your answer.

Solution

Std deviation is the square root of square of deviations from the mean.

Just by comparison we are asked to calculate which set has the smaller std deviation.

Comparing the 3 data we find

As C has the minimum range, it has the smaller std deviation.