According to the national lnstitute on alcohol abuse and alcoholism, 41% of college students nationwide engage in "binge drinking" behavior, having 5 or more drinks in one occasion during the past two weeks. a college president wonders if the proportion of students enrolled at her college that binge drink is actually lower than the national proportion. ln a commissioned study, 348 students are selected randomly from a list of all students enrolled at the college. of these, 132 admitted to having engaged in binge drinking. a. what is the population being studied, and what is the sample and sample size?

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.