BUSINESS STATISTICS - MCQS

F.Y B.COM

SEMESTER - 2

BUSINESS STATISTICS

(BS)

MCQS = 2012-13

1. The sale of umbrella and rainy season are _______ correlated.

(a) positively

(b) negatively

(c) inversely 

(d) none of the above

2. Karl-Pearson’s Coefficient of Correlation is known as _______

(a) Product moment correlation coefficient

(b) Pearsonian correlation coefficient

(c) Both (a) and (b)

(d) none of the above

3. The _______ property in regression analysis that the sign of bxy, byx and rxy are same.

(a) signature

(b) area

(c) special 

(d) none

4. The paired values plotted on a graph marked by points lead to _______ diagram.

(a) scatter 

(b) dot

(c) both (a) and (b) 

(d) none

5. The variable used for prediction is called _______ .

(a) Regressed

(b) Regressor

(c) Explained 

(d) dependent variable

6. Multiplicative relationship between four components of the time series given by

(a) Y = T x S x C x I

(b) Y = T + S + C + I

(c) Y = TS x CI

(d) All of the above

7. If the trend is absent in the data then the Seasonal Indices are computed by _______ .

(a) Simple average

(b) Ratio to moving average

(c) Ratio to trend method 

(d) none of the above

8. Suppose fitted trend line is Y = 85.4 - 2.4X, then trend line exhibit _______ trend.

(a) increasing

(b) decreasing

(c) normal 

(d) parallel

9. Changes that have taken place as a result of booms and depression are classified under “ _______ ” .

(a) Irregular Variation

(b) Cyclical Variation

(c) Secular Variation 

(d) Seasonal Variation

10. The quantity “b” in the regression equation Y = a + bX is called the _______.

(a) regression coefficient 

(b) slope coefficient

(c) correlation coefficient 

(d) both (a) and (b)

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