A i. Explain the term numerical data and give three examples.

ii. Explain the term categorical data and give three examples.

iii. What is the dierence between discrete and continuous data?

B. Identify the scale used for each of the following variables

i. Calories consumed during the day

ii. Marital status

iii. Perceived health status reported as poor, fair, good, or excellent

iv. Blood type

v. IQ score

C) A persons level of education can be measured in several ways. It could be recorded as

years of education, or it could be treated as an ordinal variable for example, less than

high school, high school graduate, and so on. Is it always better to use years of education

than the ordinal variable measurement of education? Explain your answer?