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प्रश्न
Choose the correct alternative:
Factors responsible for seasonal variations are
विकल्प
Weather
Festivals
Social customs
All the above
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उत्तर
All the above
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संबंधित प्रश्न
Define Time series
Discuss about irregular variation
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 shows the number of salesmen working for a certain concern:
| Year | 1992 | 1993 | 1994 | 1995 | 1996 |
| No. of salesman |
46 | 48 | 42 | 56 | 52 |
Use the method of least squares to fit a straight line and estimate the number of salesmen in 1997
Choose the correct alternative:
The value of ‘b’ in the trend line y = a + bx is
A bullet of mass m and velocity a is fired into a large block of wood of mass M The final velocity of the system is
Sum of n terms of series 1.3 + 3.5 + 5.7 + ______ is
Let An be the sum of the first n terms of the geometric series `704 + 704/2 + 704/4 + 704/8 + ...` and Bn be the sum of the first n terms of the geometric series `1984 - 1984/2 + 1984/4 + 1984/8 + ...` If An = Bn, then the value ofn is (where n ∈ N).
What is the sum of the first 50 terms of the series (1 × 3) + (3 × 5) + (5 × 7) + ...?
The sum of the series 3.6 + 4.7 + 5.8 + ....... upto (n – 2) terms
