MCQs of Statistics – SAMPLE LINEAR REGRESSION AND CORRELATION

Least square regression line always passes through __________

The two regression co-efficient always have the ________ sign.

The regression co-efficient are ____ origin.

A model is linear if it is linear in the dependent variable and also in __________

When the two regression lines coincide there r is _______.

In x = 2 _______ 6y the value of y are increasing by one unit then values of x are.

If y = 2 + 6x then value of y intercept is ________

If x = 3 then value of regression co-efficient of X or Y is _______

Regression co-efficient is denoted by

In correlation, both variables are

Correlation is ____ of regression coefficients.

Correlation coefficient lies between________

Correlation coefficient is ____ with respect to x and y.

Correlation coefficient is ____ of origin and unit of measurement.

Which of the following can never be taken as coefficient of correlation is ______

If bxy = -.8 by x = 1.2 then value of r is ________

If x and y are Independent to each other the coefficient of correlation is _________

If bxy = byx = r then _______

If r, between u = x and y = -x is _______

Two attributes are associated if expected frequency is _________

In r x c table for test of Independence the degree of freedom is _____

(A β C) is a frequency of attributes of order_____

If (AB) >(A) (B)/n _______ then A and B are

In perfect association the value of coefficient of association is ________

The table representing two attributes is called

Attributes are ____ if they have some relation.

To cut a population into three classes is called_______

Richness is not a _____

Drugs are the example of _____

γxy is always equal to________