Advertisements
Advertisements
प्रश्न
Example for positive correlation is
विकल्प
Income and expenditure
Price and demand
Repayment period and EMI
Weight and Income
Advertisements
उत्तर
Income and expenditure
APPEARS IN
संबंधित प्रश्न
Calculate the correlation coefficient for the following data.
| X | 25 | 18 | 21 | 24 | 27 | 30 | 36 | 39 | 42 | 48 |
| Y | 26 | 35 | 48 | 28 | 20 | 36 | 25 | 40 | 43 | 39 |
If r(X,Y) = 0 the variables X and Y are said to be
Scatter diagram of the variate values (X, Y) give the idea about
The person suggested a mathematical method for measuring the magnitude of linear relationship between two variables say X and Y is
If Cov(x, y) = – 16.5, `sigma_"x"^2` = 2.89, `sigma_"y"^2` = 100. Find correlation coefficient.
Find the coefficient of correlation for the following data:
| X | 35 | 40 | 60 | 79 | 83 | 95 |
| Y | 17 | 28 | 30 | 32 | 38 | 49 |
Calculate the correlation coefficient from the following data:
∑X = 125, ∑Y = 100, ∑X2 = 650, ∑Y2 = 436, ∑XY = 520, N = 25
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:
The value of the coefficient of correlation r lies between:
Define Correlation.
