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प्रश्न
Choose the correct alternative:
The value of ‘b’ in the trend line y = a + bx is
विकल्प
Always positive
Always negative
Either positive or negative
Zero
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उत्तर
Either positive or negative
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संबंधित प्रश्न
Mention the components of the time series
Explain cyclic variations
Define seasonal index
State the different methods of measuring trend
The following figures relates to the profits of a commercial concern for 8 years
| Year | Profit (₹) |
| 1986 | 15,420 |
| 1987 | 15,470 |
| 1988 | 15,520 |
| 1989 | 21,020 |
| 1990 | 26,500 |
| 1991 | 31,950 |
| 1992 | 35,600 |
| 1993 | 34,900 |
Find the trend of profits by the method of three yearly moving averages
The following table gives the number of small-scale units registered with the Directorate of Industries between 1985 and 1991. Show the growth on a trend line by the free hand method.
| Year | No. of units (in '000) |
| 195 | 10 |
| 986 | 22 |
| 1987 | 36 |
| 198 | 62 |
| 1989 | 55 |
| 1990 | 0 |
| 1991 | 34 |
| 1992 | 50 |
Choose the correct alternative:
The components of a time series which is attached to short term fluctuation is
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 component of a time series attached to long term variation is trended as
The nth term of the series 2 + 4 + 7 + 11 + ..... is
