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प्रश्न
Fill in the blank :
_______ component of time series is indicated by a smooth line.
उत्तर
Trend component of time series is indicated by a smooth line.
संबंधित प्रश्न
Use the method of least squares to fit a trend line to the data in Problem 1 above. Also, obtain the trend value for the year 1975.
The following table gives the production of steel (in millions of tonnes) for years 1976 to 1986.
| Year | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 |
| Production | 0 | 4 | 4 | 2 | 6 | 8 | 5 | 9 | 4 | 10 | 10 |
Fit a trend line to the above data by the graphical method.
Moving averages are useful in identifying ______.
An overall upward or downward pattern in an annual time series would be contained in which component of the times series?
_______ component of time series is indicated by periodic variation year after year.
_______ component of time series is indicated by a long wave spanning two or more years.
Fill in the blank :
_______ component of time series is indicated by up and down movements without any pattern.
State whether the following is True or False :
Seasonal variation can be observed over several years.
Cyclical variation can occur several times in a year.
Irregular variation is not a random component of time series.
Choose the correct alternative:
Which of the following can’t be a component of a time series?
Which component of time series refers to erratic time series movements that follow no recognizable or regular pattern?
Choose the correct alternative:
The following trend line equation was developed for annual sales from 1984 to 1990 with 1984 as base or zero year.
Y = 500 + 60X (in 1000 ₹). The estimated sales for 1984 (in 1000 ₹) is
______ components of time series is indicated by a smooth line
______ component of time series is indicated by periodic variation year after year.
State whether the following statement is True or False:
Seasonal variation can be observed over several years
Cyclical variation can occur several times in a year.
