Statistics: Mean and Median

Refer to the chart below and the line associated with your assigned number to answer these questions. The data represent your hypothetical walking times for each of the months January - October (10 months).

1. Calculate your mean and your median walking time for the 10 months.
2. How many minutes would you have to walk in November so that your mean for the 11 months would be 2 percentage points more than your mean for the 10 months?

Use this information:

January - October: 267, 278, 289, 306, 330, 345, 378, 400, 432, 456