Test: Correlation And Regression- 5 - CA Foundation MCQ
30 Questions MCQ Test Quantitative Aptitude for CA Foundation - Test: Correlation And Regression- 5
Correlation coefficient r lie between the regression coefficients byx and bxy
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Since the correlation coefficient r cannot be greater than 1 numerically, the product of the regression must
The correlation coefficient r is the __________ of the two regression coefficients byx and bxy
Maximum value of Rank Correlation coefficient is
The partial correlation coefficient lies between
In case ‘Speed of an automobile and the distance required to stop the car often applying brakes’ – correlation is
In case ‘Sale of woolen garments and day temperature’–––– correlation is
In case ‘Sale of cold drinks and day temperature’ –––––– correlation is
In case of ‘Production and price per unit’ – correlation is
If slopes at two regression lines are equal them r is equal to
Co–variance measures the joint variations of two variables.
The minimum value of correlation coefficient is
The maximum value of correlation coefficient is
For the regression equation of Y on X , 2x + 3Y + 50 = 0. The value of bYX is
In Method of Concurrent Deviations, only the directions of change (Positive direction / Negative direction) in the variables are taken into account for calculation of
In calculating the Karl Pearson’s coefficient of correlation it is necessary that the data should be of numerical measurements. The statement is
In rank correlation coefficient the association need not be linear
Great advantage of _________ is that it can be used to rank attributes which can not be expressed by way of numerical value.
Correlation coefficient is ___________ of the units of measurement.
A coefficient near +1 indicates tendency for the larger values of one variable to be associates with the larger values of the other
Correlation methods are used to study the relationship between two time series of data which are recorded annually, monthly, weekly, daily and so on.
The value of correlation coefficient lies between
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