Practice Test 10

Refer to the double-line graph shown, which displays monthly revenue (in thousands of dollars) for Store A and Store B from January through June. During which month was the percent difference between the stores' revenues the greatest (relative to the smaller value)?

Refer to the dot plot shown, which displays the number of pets owned by 20 families surveyed in a neighborhood. If the family with the highest number of pets is removed from the data, how does the mean change?