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प्रश्न
If Cov(x, y) = – 16.5, `sigma_"x"^2` = 2.89, `sigma_"y"^2` = 100. Find correlation coefficient.
पर्याय
– 0.12
0.001
– 1
– 0.97
उत्तर
– 0.97
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संबंधित प्रश्न
Example for positive correlation is
If the values of two variables move in same direction then the correlation is said to be
If the values of two variables move in the opposite direction then the correlation is said to be
The variable which influences the values or is used for prediction is called
If two variables moves in decreasing direction then the correlation is
The person suggested a mathematical method for measuring the magnitude of linear relationship between two variables say X and Y is
If r = – 1, then correlation between the variables
Find the coefficient of correlation for the following data:
| X | 35 | 40 | 60 | 79 | 83 | 95 |
| Y | 17 | 28 | 30 | 32 | 38 | 49 |
A measure of the strength of the linear relationship that exists between two variables is called:
The value of the coefficient of correlation r lies between:
