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? Runner Hours Jeff 9 Mark 5 Karen 5 Costas 5 Brett 7 Nikki 6 Jack 7 (1 point) Responses mean = 10 median = 11 mode = 11.3 range = 4 mean = 10 median = 11 mode = 11.3 range = 4 mean = 11 median = 11.3 mode = 10 range = 0.3 mean = 11 median = 11.3 mode = 10 range = 0.3 mean = 11.3 median = 11 mode = 10 range = 4 mean = 11.3 median = 11 mode = 10 range = 4 mean = 11.3 median = 11 mode = 10 range = 0.3 mean = 11.3 median = 11 mode = 10 range = 0.3

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? Runner Hours Jeff 9 Mark 5 Karen 5 Costas 5 Brett 7 Nikki 6 Jack 7 (1 point) Responses mean = 10 median = 11 mode = 11.3 range = 4 mean = 10 median = 11 mode = 11.3 range = 4 mean = 11 median = 11.3 mode = 10 range = 0.3 mean = 11 median = 11.3 mode = 10 range = 0.3 mean = 11.3 median = 11 mode = 10 range = 4 mean = 11.3 median = 11 mode = 10 range = 4 mean = 11.3 median = 11 mode = 10 range = 0.3 mean = 11.3 median = 11 mode = 10 range = 0.3

Answer 1

To find the mean, median, mode, and range for the second week, we add five hours to each of the training times.

Runner | Hours
-------|------
Jeff | 14
Mark | 10
Karen | 10
Costas | 10
Brett | 12
Nikki | 11
Jack | 12

Mean = (14 + 10 + 10 + 10 + 12 + 11 + 12) / 7 = 79 / 7 = 11.3

Median = 11.3 (since it is the middle value in the ordered list of training times)

Mode = 10 (since it is the value that appears most frequently)

Range = 14 - 10 = 4

Therefore, the correct answer is:
mean = 11.3
median = 11.3
mode = 10
range = 4