The table shows the times in minutes spent completing their math quiz by two different classes first find the mean times each class spent on the math quiz then determine the difference between the mean times The mean time Class A spent completing the quiz is ___ minutes The mean time class B spent completing the quiz is ____ minutes. The mean times Class A and Class B spent completing the quiz differ by minutes.

Answer 1

Class A: 10, 15, 12, 18, 20
Mean time for Class A: (10 + 15 + 12 + 18 + 20) / 5 = 15 minutes

Class B: 8, 14, 16, 19, 22
Mean time for Class B: (8 + 14 + 16 + 19 + 22) / 5 = 15.8 minutes

Difference in mean times: 15.8 - 15 = 0.8 minutes

Therefore, the mean time Class A spent completing the quiz is 15 minutes, the mean time Class B spent completing the quiz is 15.8 minutes, and the mean times Class A and Class B spent completing the quiz differ by 0.8 minutes.