Q 6 Suppose that the study investigators categorized cholesterol levels as follows: Less than 100 md/dL: Optimum 100-129 md/dL: Fairly Good 130-159 md/dL: Borderline high 160-189 md/dL: High 190+ md/dL: Very high What type of variable are the cholesterol levels now? Select one: O a. Continuous O b. Dichotomous O c. Discrete O d. Nominal O e. Ordinal