Students conducted an experiment using these steps.
Step 1: They measured the number of seconds each student took to count forward from 0 to 100.
Step 2: They measured the number of seconds each student took to count backward from 100 to U.
Step 3: They calculated the difference, in seconds, between counting forward and counting backward for
each student.
The two histograms show the differences, in seconds, for the boys and for the girls.