In recent years, a number of companies have been formed that offer competition to at& t in long-distance calls. all advertise that their rates are lower than at& t’s, and as a result their bills will be lower. at& t has responded by arguing that for the average consumer there will be no difference in billing. suppose that a statistics practitioner working for at& t determines that the mean and standard deviation of monthly long-distance bills for all its residential customers are $17.09 and $3.87, respectively

Ted and meg have each drawn a line on the scatter plot shown below: the graph shows numbers from 0 to 10 on x and y axes at increments of 1. dots are made at the ordered pairs 1, 8 and 2, 7.5 and 3, 6 and 4, 5.5 and 4.5, 4.8 and 5, 4 and 6, 3.5 and 7, 3 and 8, 1.9 and 9, 1.2 and 10, 0. a straight line labeled line p joins the ordered pairs 0, 8.5 and 10.1, 0. a straight line labeled line r joins the ordered pairs 0, 8.5 and 7.8, 0. which line best represents the line of best fit? line p, because it is closest to most data points line p, because it shows a positive association line r, because it is closest to most data points line r, because it shows a negative association