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प्रश्न
Choose the correct alternative:
Least square method of fitting a trend is
पर्याय
Most exact
Least exact
Full of subjectivity
Mathematically unsolved
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उत्तर
Most exact
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संबंधित प्रश्न
State the uses of time series
Mention the components of the time series
Write a brief note on seasonal variations
Explain cyclic variations
State the different methods of measuring trend
The annual production of a commodity is given as follows:
| Year | production (in tones) |
| 1995 | 155 |
| 1996 | 162 |
| 1997 | 171 |
| 19988 | 182 |
| 1999 | 158 |
| 2000 | 880 |
| 2001 | 178 |
Fit a straight line trend by the method of least squares
Calculate the seasonal indices from the following data using the average method:
| Year | I Quarter | II Quarter | III Quarter | IV Quarter |
| 2008 | 72 | 68 | 62 | 76 |
| 2009 | 78 | 74 | 78 | 72 |
| 2010 | 74 | 70 | 72 | 76 |
| 2011 | 76 | 74 | 74 | 72 |
| 2012 | 72 | 72 | 76 | 68 |
Choose the correct alternative:
The additive model of the time series with the components T, S, C and I is
Choose the correct alternative:
The value of ‘b’ in the trend line y = a + bx is
The sum of the series 3.6 + 4.7 + 5.8 + ....... upto (n – 2) terms
