Statistics 5 Probability and Z-Scores

Example 2

n X X2 Y Y2 XY

n 21 8

n 14 9

n 16 10

n 11 15

n 15 11

n 10 16

n 9 14

n 8 21

n∑X ∑Y

n N =

nSDX r =

nSDY r2 =

nb =

na =

nŶ = a + bX