Jose took a sample of eight rats and trained them to run a maze in order to find beer in a goal box. After they were well trained, he timed how long it took them, in seconds, to run the maze. Here are the data collected:

4.73, 6.54, 5.88, 4.68, 5.82, 6.01, 5.54, and 6.24.

What is the sample variance and sample standard deviation for Jose's rat study?