rosieposie27
rosieposie27 rosieposie27
  • 22-05-2019
  • Mathematics
contestada

What is the correlation coefficient with the following data points: (2,47), (3,2), (5,26)?

0.19
-0.29
0.29
-0.19

Respuesta :

jess7774
jess7774 jess7774
  • 22-05-2019

The second one is the answer

Answer Link
AlonsoDehner AlonsoDehner
  • 02-06-2019

Answer:

Option B (-0.29)

Step-by-step explanation:

Given are x,y values as

(2,47), (3,2), (5,26)

x y xy x^2 y^2

     

2 47 94 4 2209

3 2 6 9 4

5 26 130 25 676

Total 10 75 230 38 2889

     

Cov -6.666666667    

r -0.2907    

Thus we find correlation coefficient is -0.29

Option B is right

Answer Link

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