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प्रश्न
Choose the correct alternative:
The regression line is obtained by
विकल्प
Minimizing the sum of squares of deviations of the predicted values from the observed values
Minimizing the sum of deviations of the predicted values from the observed values
Maximizing the sum of squares deviations of the predicted values from the observed values
Maximizing the sum of deviations of the predicted values from the observed values
उत्तर
Minimizing the sum of squares of deviations of the predicted values from the observed values
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संबंधित प्रश्न
For the certain bivariate data on 5 pairs of observations given
∑x = 20, ∑y = 20, ∑x2 = 90, ∑y2 = 90, ∑xy = 76
Calculate:
- cov(x, y)
- byx and bxy
- r
Following table shows the all India infant mortality rates (per '000) for years 1980 to 2010:
| Year | 1980 | 1985 | 1990 | 1995 | 2000 | 2005 | 2010 |
| IMR | 10 | 7 | 5 | 4 | 3 | 1 | 0 |
Fit the trend line to the above data by the method of least squares.
