Question

Find number of pairs of observations from the following data: r = – 0.4, X = 100, X2 = 2250, Y = 100, Y2 = 2250 & XY = 1900.​

Answer 1

r = – 0.4, X = 100, X2 = 2250, Y = 100, Y2 = 2250 & XY = 1900 X 0 = 0000.00