A couple years ago I ran from Dolihner up towards Pit Stop, circled around past PICS, down to Kaselehlie and Elenieng, out to the U border, back into town through the public market, up to Spanish wall, up main street and back into Dolihner. Using a global positioning satellite receiver (GPS) and a chronometer I determined both my distance in kilometers and my time in minutes. In the world of running, a key metric is one's pace. Pace is the number of minutes per kilometer. Remember that best fit line, least squares, linear regression, and linear trend line all mean the same thing.
______________ Determine the slope of the linear trend line for the data.
______________ Determine the y-intercept of the linear trend line for the data.
______________ As I reached my turn-around at the bridge on the border between U and Nett my GPS said I was 7.45 kilometers into my run. I did not check my chronometer. Use the slope and intercept determined above to calculate the time in minutes at which I reached the U border.
______________ At 60 minutes I usually try to rehydrate by picking up a bottle of water or a packet of juice. Using the above slope and intercept, determine my distance in kilometers at the 60 minute mark.
______________ Calculate how long for me to run the 80 kilometers around the circumferential road of Pohnpei.
