Economic Statistics-II

The Coefficient of Correlation

• has no limit

• varies between +1 or -1

• can be less than 1

• none

Correlation is perfectly positve when r= _________

The most practically used method of measuring correlation coefficient is

• Karl Pearson Method

• Rank Correlation method

• Concurrent Deviation Method

• Graphical method

In Partial correlation all the given variables are analysed simultaneously

• true

• false

_____ are average of specialized type.

• Regression

• correlation

• index number

• regression line

Which is the ideal index number?

• Fisher's

• Laspeyre's

• Paache's

• Marshall's

Which average is best in the construction of index numbers_____

Index numbers are the pulse of the economy

• true

• false

A Diagram which shows the scatterness of the variables is called ___.

A Graph which shows the relationship between two variables is called correlation graph

• True

• False