Here are the gold medal times for the women's 100-meter freestyle (swimming) in every other Summer Olympics:

YearTime (in seconds)

191282.2

192472.4

193266.8

195266.8

196061.2

196860.0

197655.65

198455.92

199254.64

200053.8

200853.1

1. Draw a scatter plot of the data.
2. Describe the relationship between the variables in the graph.
3. Find the correlation coefficient.
4. Find the least-squares regression line.
5. Find the estimated gold medal time for 1932 and for 1984.
6. Why are your answers in (e) different than the times given in the table?
7. Find the estimated gold medal time for 2020 and for 2200.