ECO253

_____________ 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.

______________ 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

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

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

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

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

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

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

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

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

_____________ 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.

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

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

Spearman's correlation coefficient measures correlation when the data is

_______ variable is also known as the regressor

Which of the followings is not a type of system?

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

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