Home
Class 12
MATHS
Find the variance of the variate u=ax+by...

Find the variance of the variate `u=ax+by` in terms of the variances and covariance of x and y.

Text Solution

Verified by Experts

The correct Answer is:
`(-(b)/(a))/(|(b)/(a)|)`
Promotional Banner

Topper's Solved these Questions

  • CORRELATION AND REGRESSION

    ML KHANNA|Exercise QUESTION (PROBLEMS ON CORRELATION) |5 Videos

  • CORRELATION AND REGRESSION

    ML KHANNA|Exercise QUESTION (PROBLEMS ON CORRELATION (State of nature of the following correlations) (positive, negative or no correlation)) |5 Videos

  • CORRELATION AND REGRESSION

    ML KHANNA|Exercise SELF ASSESSMENT TEST |10 Videos

  • CONCEPTS OF SET THEORY

    ML KHANNA|Exercise Self Assessment Test|13 Videos

  • DEFINITE INTEGRAL

    ML KHANNA|Exercise Miscellaneous Questions (Assertion/Reason)|1 Videos

Similar Questions

Explore conceptually related problems

Find the variance for the given distribution :

If the variance of the random variable X is 5 ,then variance of the random variable -3X is

Find the variance of first n natural numbers.

Find the Variance of First 10 Natural Numbers.

If variance of variable is 50 then x=

Find the S.D. and variance of the following data:

Find the Variance of First 5 Multiples of 6.

Find the value of the covariance between x and y , if the regression coefficient of y on x is 3.75 and sigma_x =2, sigma_y =8

If the covariance between x and y is 30, variance of x is 25 and variance of y is 144, then what is the correlation coefficient?