ECO253

_______ variable is also known as the regressor

Spearman's correlation coefficient measures correlation when the data is

in general sense, means the estimation or prediction of the unknown value of one variable from the known value of the other variable

Karl Pearson was a British Biometrician and statistician suggested a mathematical method for measuring the magnitude of linear relationship between two _____

___ is a mathematical measure of the average relationship between two or more variables in terms of the original units of the data

Which of the followings is not a type of system?

Spearman's correlation coefficient approximates Pearson's correlation when the sample size is _____________

In regression analysis, the dependent variable is also known as ________

is the line which gives the best estimate of one variable for any given value of the other variable

he term best fit is interpreted in accordance with the principle of least squares which involves minimising the sum of the squares of the residuals or the ____ of the estimates

______________ describes situations if corresponding to a unit change one variable; the other variable does not change at a constant rate but at a fluctuating rate

______________ is a type of regression in which more than two variables are studied

_____________ is the situation when the phenomena under study inter-influence each other. Such instances are usually observed in data relating to economic and business situations.

Prediction or ______________ is one of the major problems in almost all the spheres of human activity

_____________ describes a situation where for a unit change in one variable there is a constant corresponding change in the other variable over the entire range of values.

______ Situations may arise when the values of two variables deviate in the same direction

A British Psychologist _______ developed a formula in 1904 which can be used to obtain the correlation coefficient between the ranks of n individuals in the two variables or attributes being study

_______________ formula can be used even when dealing with variables which are measured quantitatively

____________ Correlation is said to be negative or inverse if the variables deviate in the opposite direction