Question

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
thankyou!!


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

Answer 1

To find the mean, add 5 hours to each of the hours for the first week. This will get the number of hours that each of the friends spent training in the second week.
Next add up the hours for the second week and divide by 7.

Answer 2

@ridesllc Are you there?