Each of the dot plots shown represents the number of hours spent studying per week by students in two different samples, Sample P and Sample Q. Which statement best compares the standard deviations of the number of hours spent studying for these two samples?
The standard deviation for Sample P is less than the standard deviation for Sample Q.
The standard deviation for Sample P is equal to the standard deviation for Sample Q.
The standard deviation for Sample P is greater than the standard deviation for Sample Q.
There is not enough information to compare these standard deviations.
