Question

Given:variance of x=30,regression equation:3x+4y=44 and ​

Answer 1

Step-by-step explanation:

• 3x + 4y = 44
• 3(30) + 4y = 44
• 90 + 4y = 44
• 4y = 44 - 90
• 4y = -46
• y = $\frac{-46}{4}$

LHS = 3x + 4y

RHS = 44

• 3(30) + 4($\frac{-46}{4}$)
• 90 + (-46)
• 90 - 46
• 44

:. LHS = RHS