Question

15. The table shows the number of hours that a group of friends spent in their first week training to run a marathon. In the second week, they each add five hours to their training times. What are the mean, median, mode, and range of times for the second week?


Jeff
9
Mark
5
Karen
5
Costas
5
Brett
7
Nikki
6
Jack
7

a. mean = 10
median = 11
mode = 11.3
range = 4

b. mean = 11
median = 11.3
mode = 10
range = 0.3

c. mean = 11.3
median = 11
mode = 10
range = 4

d. mean = 11.3
median = 11
mode = 10
range = 0.3