For questions 6-9, identify types of variables by selecting one and only one of the following: a. Continuous b. Dichotomous c. Discrete d. Nominal e. Ordinal 6. Blood type (A, B, AB, O) ____ 7. Education level (1=some school, 2=HS graduate, 3=some college, 4=college graduate) ____ 8. Serum glucose level (mg/dL) ____ 9. Number of children in a household ____