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प्रश्न
The variable whose value is influenced (or) is to be predicted is called
पर्याय
dependent variable
independent variable
regressor
explanatory variable
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उत्तर
dependent variable
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संबंधित प्रश्न
Calculate the coefficient of correlation for the ages of husbands and their respective wives:
| Age of husbands | 23 | 27 | 28 | 29 | 30 | 31 | 33 | 35 | 36 | 39 |
| Age of wives | 18 | 22 | 23 | 24 | 25 | 26 | 28 | 29 | 30 | 32 |
Example for positive correlation is
If r(X,Y) = 0 the variables X and Y are said to be
The correlation coefficient from the following data N = 25, ∑X = 125, ∑Y = 100, ∑X2 = 650, ∑Y2 = 436, ∑XY = 520
The variable which influences the values or is used for prediction is called
The correlation coefficient
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
Calculate the correlation coefficient from the data given below:
| X | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Y | 9 | 8 | 10 | 12 | 11 | 13 | 14 | 16 | 15 |
If the points on the scatter diagram indicate that as one variable increases the other variable tends to decrease the value of r will be:
