find mean value of x and y is the two regression equations are 2x+3y-5=0 and x+y=2
Answers
Step-by-step explanation:
balue of x=1 and y =1
multiple equation 2 by 2 we get 2x +2y=4. eq3
solve equal 1 and 3
y=1
put y=1 in equation 1
we get x=1
Answer:
The mean value of x is 1 and the mean value of y is 1
Step-by-step explanation:
Given the regression equations are:
2x + 3y - 5 = 0
x + y = 2
We know that the mean value of x and y is the solution of the equations.
Therefore, solving the equations simultaneously.
=> 2x + 3y - 5 = 0
=> 2x + 3y = 5 --(i)
and x + y = 2 --(ii)
Multiplying equation (ii) by 2
=> 2x + 2y = 4 --(iii)
Subtract equation (iii) from equation (i)
=> y = 1
Putting y = 1 in equation (ii)
=> x + 1 = 2
=> x = 2 - 1
=> x = 1
Therefore, the mean value of x is 1 and the mean value of y is 1