For each of the following variables, determine i) is the variable qualitative or quantitative? ii) the level of measurement: nominal, ordinal, interval, or ratio? iii) if the variable is quantitative is it discrete or continuous? (6 points each) a. Date of birth b. Credit card brand c. Social security number d. Body weight Using the data on Sheet 1 in the data file 245final_data.xisx, find the following statistics of the