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प्रश्न
Choose the correct alternative:
A time series is a set of data recorded
पर्याय
Periodically
Weekly
Successive points of time
All the above
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उत्तर
All the above
APPEARS IN
संबंधित प्रश्न
Explain cyclic variations
Define seasonal index
The sales of a commodity in tones varied from January 2010 to December 2010 as follows:
| In Year 2010 | Sales (in tones) |
| Jan | 280 |
| Feb | 240 |
| Mar | 270 |
| Apr | 300 |
| May | 280 |
| Jun | 290 |
| Jul | 210 |
| Aug | 200 |
| Sep | 230 |
| Oct | 200 |
| Nov | 230 |
| Dec | 210 |
Fit a trend line by the method of semi-average
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 additive model of the time series with the components T, S, C and I is
Choose the correct alternative:
The seasonal variation means the variations occurring with in
From the following data, calculate the trend values using fourly moving averages.
| Year | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 |
| Sales | 506 | 620 | 1036 | 673 | 588 | 696 | 1116 | 738 | 663 |
The sum of the infinite series `x + (1 + 2)/(2!) x^2 + (1 + 2 + 3)/(3!) x^3 +` .... equals
Sum of n terms of series 1.3 + 3.5 + 5.7 + ______ is
The sum of the series 3.6 + 4.7 + 5.8 + ....... upto (n – 2) terms
