This question is based on the 50 U.S. states. Each state is an observational unit, and the variables listed are measured separately for each of the 50 states. For each of the following pairs of variables, would you expect the correlation to be strong and positive, moderate and positive, weak or very weak, moderate and negative, or strong and negative.
a. 2012 popular vote for Romney and 2012 popular vote for Obama
b. Total 2012 popular vote for president and 2012 number of electoral votes
c. Number of McDonald’s restaurants and number of attorneys
d. High school graduation rate and percentage of people over 25 with a four-year college degree

e. Year of statehood and number of years as a state
f. Year of statehood and longitude (east/west)
g. Longitude and latitude (north/south)
h. Latitude and average annual temperature