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If the two regression lines are x y= 1 and x-y= 1 then x mean and y mean are?
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If the two regression lines are x y= 1 and x-y= 1 then x mean and y me...
Regression Lines:
Calculating x and y mean:
Finding x and y values:
Calculating x and y mean:
Therefore, the mean of x is (1 + √5)/2 and the mean of y is 0.
- Regression line 1: x y = 1
- Regression line 2: x - y = 1
Calculating x and y mean:
- To calculate the mean of x, we need to find the average value of all the x values in the dataset.
- To calculate the mean of y, we need to find the average value of all the y values in the dataset.
- We can use the regression lines to find the values of x and y that satisfy both equations.
Finding x and y values:
- From regression line 1, we can solve for y: y = 1/x.
- Substituting this value for y into regression line 2 gives us: x - 1/x = 1.
- Multiplying both sides by x gives us: x^2 - 1 = x.
- So we have a quadratic equation: x^2 - x - 1 = 0.
- Solving for x using the quadratic formula gives us: x = (1 ± √5)/2.
- Plugging these values into regression line 1 gives us the corresponding y values: y = 2/(1 ± √5).
Calculating x and y mean:
- To calculate the mean of x, we add up the values of x and divide by the total number of values: (1 + √5)/2.
- To calculate the mean of y, we add up the values of y and divide by the total number of values: 2/(1 + √5) + 2/(1 - √5) = 0.
Therefore, the mean of x is (1 + √5)/2 and the mean of y is 0.
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If the two regression lines are x y= 1 and x-y= 1 then x mean and y mean are?
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If the two regression lines are x y= 1 and x-y= 1 then x mean and y mean are? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about If the two regression lines are x y= 1 and x-y= 1 then x mean and y mean are? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the two regression lines are x y= 1 and x-y= 1 then x mean and y mean are?.
If the two regression lines are x y= 1 and x-y= 1 then x mean and y mean are? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about If the two regression lines are x y= 1 and x-y= 1 then x mean and y mean are? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the two regression lines are x y= 1 and x-y= 1 then x mean and y mean are?.
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