Question

if the relation between x and u is 3x 4u 7=0 And the correlation coefficient between x and y is -0.6 then what is the correlation coefficient between u and y
The answer is 0.6
Please explain your answer

Answer 1

Step-by-step explanation:

Given If the relation between x and u is 3x + 4u + 7=0 And the correlation coefficient between x and y is -0.6 then what is the correlation coefficient between u and v.

• Given the equation 3x + 4u + 7 = 0
• So correlation coefficient between x and y is R xy = - 0.6
• Now we have correlation coefficient R xy = b x d / mod b x mod d x R uv
• So R uv and R xy are equal and also b and d have same sign.
• If both have negative sign then R uv = - R xy
• Consider the equation 3x + 4u + 7 = 0
•                                  4u = - 7 – 3x
•                    Or u = - 7/4 – ¾ x
• So this is in the form of u = a + bx where b = - 3/4 so R xy = - 0.6
• So d should have a positive value.  
• So if b and d have a different sign then R xy will be negative.
• So b = - b and d = d
• Now R xy = b x d / mod b x mod d x R uv
• Substituting the values we get
• So – 0.6 = (- b) (d) / mod (- b) (d) R uv
• So – 0.6 = - b x d / b x d x R uv
• So – 0.6 = - R uv
• Or R uv = 0.6

Reference link will be

https://brainly.in/question/6387553

https://brainly.in/question/13877695

Answer 2

Answer:

Step-by-step explanation: