13. Test Scores Which is a better relative position, a score of 83 on a geography test that has a mean of 72
and a standard deviation of 6, or a score of 61 on an
accounting test that has a mean of 55 and a standard
deviation of 3.5?

(6,1)(5,4)slope = (4 - 1) / (5 - 6) = 3/-1 = -3y = mx + bslope(m) = -3use either of ur , = 6 and y = 1now sub and find b, the y int1 = -3(6) + b1 = -18 + b1 + 18 = b19 = bso ur equation is : y = -3x + we need it in standard formy = -3x + 3x to both sides3x + y = 19 < == standard form