To find the median yearly rainfall for Seattle and Las Vegas, we first need to list each city's rainfall totals and then determine the median.
Seattle, WA Rainfall Totals:
- 2010: 45.79
- 2011: 32.46
- 2012: 55.14
- 2013: 40.30
- 2014: 23.78
- 2015: 49.42
Arranging these in order:
- 23.78
- 32.46
- 40.30
- 45.79
- 49.42
- 55.14
Since there are six values (an even number), the median is the average of the two middle numbers: Median = (40.30 + 45.79) / 2 = 43.045 in.
Las Vegas, NV Rainfall Totals:
- 2010: 3.72
- 2011: 5.62
- 2012: 4.11
- 2013: 8.79
- 2014: 2.33
- 2015: 3.84
Arranging these in order:
- 2.33
- 3.72
- 3.84
- 4.11
- 5.62
- 8.79
Again, since there are six values (an even number), the median is the average of the two middle numbers: Median = (3.84 + 4.11) / 2 = 3.975 in.
Now, calculate the difference between the median rainfall amounts: Difference = Median Seattle - Median Las Vegas Difference = 43.045 in. - 3.975 in. Difference = 39.07 in.
Therefore, the difference between the median yearly rainfall for Seattle and Las Vegas is 39.07 inches.