State whether each of the following variables is categorical or numerical. If categorical, give the level of measurement. If numerical, is it discrete or continuous? a. The number of shares of a stock purchased by a broker b. The length of time (in minutes, seconds, etc.) you can hold your breath under water c. Student class (senior, junior, sophomore, freshman) d. Response to whether or not a hockey player scored a goal in the all-star game A. Determine the classification for the number of shares variable. Choose the correct answer below. O numerical continuous categorical, nominal numerical, disanto categorical, ordinal b. Determine the classification for the time variable. Choose the correct answer below. numerical, conknuous 000 categorical, nominal numerical discrete O categorical, ordinal c. Determine the classification for the student class variable. Choose the correct answer below. O numerical, continuous categorical, nominal categorical, ordinal OO numerical, discrete d. Determine the classification for the response variable. Choose the correct answer bulow