Business Statistics

Q 41. The component of time series useful for long term forecasting is

(A) Secular trend
(B) Seasonal variation
(C) Cyclical variation
(D) Irregular variation
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Q 42. Seasonal variations are short term variations with period

(A) less than 6 months
(B) less than 5 years
(C) less than 1 year
(D) more than 10 years
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Q 43. Periodic movements with duration longer than a year are called

(A) Seasonal movements
(B) Cyclic movements
(C) Social movements
(D) Cultural movements
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Q 44. Cyclical variations are caused by

(A) Trade business cycles
(B) Elections
(C) Changes in foreign exchange
(D) Changes in interest rates
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Q 45. Which of the following is a method of measuring trend:

(A) Freehand curve
(B) Bar graph
(C) Histogram
(D) System Analysis
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Q 46. Which of the following is a component of timer series;

(A) Secular trend
(B) Correlation
(C) Regression
(D) Consumer price index
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Q 47. What type of index number can help the government to formulate its price policies and to take appropriate economic measures to control prices:

(A) Whole sale price index
(B) Consumer's price
(C) Quantity
(D) None of them
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Q 48. The general purchasing power of the currency of a country is determined by:

(A) Retail price index
(B) Volume index
(C) Composite index
(D) Whole-sale price index
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Q 49. In constructing index number geometric mean relatives are:

(A) Non-reversible
(B) Reciprocal
(C) Reversible
(D) None of them
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Q 50. Relationship between correlation coefficient and coefficient of determination is that

(A) both are unrelated
(B) The coefficient of determination is the coefficient of correlation squared
(C) The coefficient of determination is the square root of the coefficient of correlation
(D) both are equal
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