Using the data set (SCHL. Txt), investigate the effect of the categorical predictor schl (School location: 1 = Urban; 2 = Suburban; 3 = Rural) on the continuous outcome math (Math Scores).

Subsidized stafford loans: a. accrue interest while the student is enrolled full-time in school. b. are paid by the government. c. are paid by your parents. d. accrue interest 10 years after graduation.

The different forms of a gene for a given trait are called .

The graph shows the populations of two species in a particular region over two decades. based on the graph, what can you conclude about the relationship between the two species? a. the two species have a parasitic relationship. b. the two species are mutualistic in nature. c. the two species exhibit commensalism. d. the two species have a prey-predator relationship. e. the two species have a familial relationship.