What is a measure of the differences of all observations from the mean,expressed as a single number?
A)Standard deviation
B)Median
C)Mode
D)Range

Question

Quizplus · Accepted Answer

The measure of the differences of all observations from the mean is best represented by the standard deviation. It is a statistical measure that gives an idea of how spread out the data is from the mean. A higher standard deviation indicates that the data points are more spread out from the mean, while a lower standard deviation indicates that the data points are closer to the mean. The other options, median, mode, and range, do not take into account the spread of the data from the mean, and are not as effective in measuring the variability of the data.

What Is a Measure of the Differences of All Observations