Each DQ post must contain at least one citation from a source in support of your assertions, assumptions, opinions, or conclusions. This may be from your textbook, a source from the LIRN library, or another credible, i.e., academic source. 2. Which of the following can be considered (mathematically) interval data? a. Country of origin for a group of immigrants (Nigeria, Colombia, Italy, Japan, etc.) b. Total percentage of Nigerian immigrants c. A four-point scale of support for a tax increase (Not supportive, Somewhat supportive, Supportive, Very supportive) asked of survey respondents d. Total PAC contributions received by each congressional candidate.