निम्नलिखित

Which of the following statements is INCORRECT?

Which of the following correctly completes the given statement?

Index number helps in:

(I) determining the cost of living

The value of a and b so that the following is probability mass function

For the variables X, Y and Z, rXY = 0.80, rXZ = 0.64, rY Z = 0.79 , then square of multiple correlation coefficient R² X.Y Z is:

Which option is incorrect?

If the third quartile of the following data set 7,10,7,8,9 is 9.5, then the value of quartile deviation is:

If the second and third moment about the origin are 8 and 18 and the third moment about mean is -14 , then the first moment about the origin is:

With which characteristic movement of a time series would you associate increasing demand of smaller automobiles?