For each variable, indicate the level of data measurement. a. Number of e dash mail messages sent daily by a financial planner b. Height left parenthesis in feet, meters, etc. right parenthesis of a football team's starting quarterback c. The nationality of a state's incumbent governor d. Star rating left parenthesis 0 to 4 stars right parenthesis of a new movie Question content area bottom Part 1 a. Determine the classification for the number of messages variable. Choose the correct answer below. ratio interval ordinal