The data for two student groups, Group P and Group Q, representing the number of hours each student spent volunteering last month, are described below.
Group P: The data consists of one dot at 10, two dots at 11, three dots at 12, two dots at 13, and one dot at 14.
Group Q: The data consists of one dot at 15, two dots at 16, three dots at 17, two dots at 18, and one dot at 19.
Which statement best compares the standard deviations of the numbers of hours spent volunteering for these two groups?
The standard deviation of the number of hours spent volunteering for Group P is less than the standard deviation of the number of hours spent volunteering for Group Q.
The standard deviation of the number of hours spent volunteering for Group P is equal to the standard deviation of the number of hours spent volunteering for Group Q.
The standard deviation of the number of hours spent volunteering for Group P is greater than the standard deviation of the number of hours spent volunteering for Group Q.
There is not enough information to compare these standard deviations.
