Simple linear regression equation statistics
#Simple linear regression equation statistics skin
There appears to be a negative linear relationship between latitude and mortality due to skin cancer, but the relationship is not perfect.
The scatter plot supports such a hypothesis. You might anticipate that if you lived in the higher latitudes of the northern U.S., the less exposed you'd be to the harmful rays of the sun, and therefore, the less risk you'd have of death due to skin cancer. is included in the data set even though it is not technically a state.) ( skincancer.txt) (The data were compiled in the 1950s, so Alaska and Hawaii were not yet states, and Washington, D.C. The response variable y is the mortality due to skin cancer (number of deaths per 10 million people) and the predictor variable x is the latitude (degrees North) at the center of each of 49 states in the U.S. Here is an example of a statistical relationship.
Instead, we are interested in statistical relationships, in which the relationship between the variables is not perfect. This course does not examine deterministic relationships.