For each of the following, state the most appropriate measure of association given the variables AND briefly explain why this measure is most appropriate. In your answer, be sure to refer to levels of measurement. (/1 mark each)

a) Age (measured as "Young," "Middle-aged," and "Elderly") and frequency of exercise (measured as "Less than 3 hours per week" and "3 hours per week or more"), with many ties and frequency of exercise known to be the dependent variable.

b) Years of education (measured as the number years of schooling completed) and income (measured as before-tax income in dollars in the previous year).

c) Height (measured in centimeters) and income (measured as "Low," "Middle," and "High").

d) Age (measured as "15-24," "25-34," 35-44," "45-54," "55-64," "65-74," and "75+") and frequency of exercise (measured as "Less than once per week," "Once per week," "2-3 times per week," "4-5 times per week," and "6-7 times per week), with few ties.

e) Gender (measured as "Male," "Female," and "Other gender identity") and whether they drink coffee daily (measured as "Yes" and "No").