MathCastle
StatisticsHardTwo Variables

Two Variables · Hard problem

For a set of data, xˉ=36\bar x = 36, yˉ=27\bar y = 27, sx=2s_x = 2, sy=3s_y = 3 and the correlation is r=0.8r = 0.8. Using the least-squares line, predict yy when x=41x = 41. Express your answer as a decimal.