In: Statistics and Probability
Below are Global carbon dioxide concentrations and the measured change in Global temperature (Temperature Anomaly) for a period in our recent past:
YEAR |
CO2 Concentration (ppm) |
Temperature Anomaly (ºC) |
1981 |
339.93 |
.043 |
1985 |
343.13 |
.098 |
1989 |
350.17 |
.211 |
1992 |
355.25 |
.368 |
1995 |
360.15 |
.410 |
1999 |
364.05 |
.566 |
2002 |
372.01 |
.625 |
2005 |
380.14 |
.714 |
2009 |
384.12 |
.885 |
2012 |
399.21 |
1.07 |
2017 |
419.12 |
1.20 |
Using StatCrunch, construct a scatterplot that shows the relationship between the two variables (carbon dioxide concentrations and the measured change in Global temperature). Calculate the r value using StatCrunch. Copy and Paste your work from StatCrunch into your Word document submission. Verbally describe the direction and magnitude of the relationship you find. What does this tell you about Global warming?