Data 4 part 2 - Data coursework PDF

Preview

Summary

Data coursework...

Description

Sara Kashani Stat 113 Data day 4 part 2

Question 11 A

B correlation coefficient is -0.9261 This tells you the strength of the relationship between the variables. Correlation coefficient is between -1.0 and 1.0 so for the correlation coefficient in this example it shows a strong negative relationship coefficient of determination is 0.8577 This tells you how differences in one variable can be explained by the differences in another variable C The data shows a strong negative relationship D This is a valid statement because because the trend in the graph shows that as the years past, the number of pirates decreased and the temperature rose but the rise in temperature can also be attributed to other factors so you would have to conduct more studies E A valid statement would be from this data, the reduction of pirates since the 1800s may have caused average global temperature to rise but further research would have to be conducted F A possible explanation for the high correlation could be that there is a strong relationship between temperature and pirates G the only lurking variable was in 1860 when the number of pirates increased from 35 to 45 and the global temperature increased from 14.2 to 14.3...