ECO253




Category: ECO253

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ECO253

1 / 19

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

2 / 19

_______ variable is also known as the regressor

3 / 19

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

4 / 19

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

5 / 19

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

6 / 19

_____________ 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.

7 / 19

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

8 / 19

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

9 / 19

Spearman's correlation coefficient measures correlation when the data is

10 / 19

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

11 / 19

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

12 / 19

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

13 / 19

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

14 / 19

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

15 / 19

Which of the followings is not a type of system?

16 / 19

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

17 / 19

______________ 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

18 / 19

_____________ 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.

19 / 19

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

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