F.Y B.COM
SEMESTER - 2
MID SEMESTER EXAMINATION
BUSINESS STATISTICS
MCQS
(1) The _______ Is the graphical method of measuring the relationship between two variables.
(A) Scatter diagram
(B) Dot diagram
(C) Both (a) & (b)
(D) None
(2) If correlation coefficient r = +1 then correlation between both variables x & y is said to be _______.
(A) Positive
(B) Perfectly positive
(C) Negative
(D) Perfectly negative
(3) The component of time series associated in the increase in garment sales during Diwali is _______
(A) Irregular
(B) Secular
(C) Seasonal
(D) Cyclical
(4) The variables which are used to predict the values of dependent variables are called ______
(A) Independent variables
(B) Both (a) and (b)
(C) Explanatory variables
(D) none of these
(5) If two lines of regression are perpendicular to each other then rxy = ________
(A) +1
(B) 0
(C) -1
(D) None of these
(6) A time series consists of data arranged ________
(A) Geographically
(B) either (a) or (b)
(C) Chronologically
(D) Both (a) and (b)
(7) Seasonal variation are short term variations with period
(A) One year
(B) Less than one year
(C) More than one year
(D) All of these
(8) For the annual data _______ component of time series is absent
(A) Seasonal
(B) Cyclical
(C) Irregular
(D) Secular trend
(9) If the growth rate is constant, the trend is _______
(A) Non linear
(B) Linear
(C) Curvilinear
(D) All of these
(10) Which component of time series is associated with delay in production due to fire in factory ?
(A) Seasonal
(B) Secular trend
(C) Irregular
(D) Cyclical
(11) If the two variables X and Y deviate in ______ direction is said to be Negative correlation.
(A) Same
(B) Left
(C) Right
(D) Opposite
(12) If the plotted points in the Scatter diagram are widely scattered then the correlation between the variables is _______
(A) Poor
(B) High degree
(C) Both
(D) None
(13) The _______ coefficient is independent of change of origin and scale of measurement.
(A) Regression
(B) Correlation
(C) Univariate
(D) All of the above
(14) _______ Analysis is used to forecast the nature of dependent variable when the value of independent variable is known:
(A) Regression
(B) Correlation
(C) Both
(D) None
(15) A rime series consist of data arranged _______
(A) Chronologically
(B) Geographically
(C) Both
(D) None
(16) Secular trend refers to _______ component of time series.
(A) Short term
(B) Long term
(C) Both
(D) None
(17) The trend equation of Annual sales of a steel company is y = 12 - 0.7x then the yearly _______ of the time series is 0.7.
(A) Increment
(B) Decrement
(C) Increase
(D) All of these
(18) Methods used in the study of seasonal variations are _______
(A) Method of simple average
(B) Method of ratio to moving average
(C) Method of ratio to trend
(D) All of the above
(19) The sale of umbrella and rainy season are _______ correlated.
(A) Positively
(B) Negatively
(C) Inversely
(D) None of the above
(20) Karl Pearson's Coefficient of Correlation is known as ______
(A) Product moment correlation coefficient
(B) Pearsonion correlation coefficient
(C) Both (a) and (b)
(D) None of the above
(21) The ______ property in regression analysis means that the sign of bxy, byx and rxy are same.
(A) Special
(B) Signature
(C) Area
(D) None
(22) The paired values plotted on a graph marked by points lead to _______ diagram.
(A) Scatter
(B) Both (a) and (b)
(C) Dot
(D) None
(23) The variable used for predictions is called _______
(A) Regressed
(B) Regressor
(C) Explained
(D) Dependent variable
(24) Multiplicative relationship between four components of the time series given by
(A) Y= T x S x C x I
(B) Y = TS x CI
(C) Y = T + S + C + I
(D) All of the above
(25) If the trend is absent in the data then the Seasonal Indices are computed by _______
(A) Ratio to moving average
(B) Ratio to trend method
(C) Simple average
(D) None of the above
(26) Suppose fitted trend line is Y = 85.4 - 2.4X, then trend line exhibit _______ trend.
(A) Increasing
(B) Decreasing
(C) Normal
(D) Parallel
(27) Changes that have taken place as a result of booms and depressions are classified under the head " _______".
(A) Irregular Variation
(B) Cyclical Variation
(C) Secular Variation
(D) Seasonal Variation
(28) The quantity "b" in the regression equation Y = a + bX is called the _______
(A) Regression coefficient
(B) Correlation coefficient
(C) Slope coefficient
(D) Both (a) and (b)
(29) Irregular Variations in a time series are caused by _______
(A) Lockouts nd strikes
(B) Floods
(C) Epidemics
(D) All the above
(30) Simple average method is used to eliminate effect of _______
(A) Seasonal variation
(B) Secular trend
(C) Cycling variation
(D) None
MID SEMESTER EXAMINATION
BUSINESS STATISTICS
MCQS - 2016
(1) If the two variables X and Y deviate in ______ direction is said to be Negative correlation.
(A) Same
(B) Left
(C) Right
(D) Opposite
(2) If the plotted points in the Scatter diagram are widely scattered then the correlation between the variables is _______
(A) Poor
(B) High degree
(C) Both
(D) None
(3) The _______ coefficient is independent of change of origin and scale of measurement.
(A) Regression
(B) Correlation
(C) Univariate
(D) All of the above
(4) _______ Analysis is used to forecast the nature of dependent variable when the value of independent variable is known:
(A) Regression
(B) Correlation
(C) Both
(D) None
(5) Regression coefficient of Y on X i.e. byx is given by _______
(A) r
(B) r
(C) bxy
(D) rxy
(6) A rime series consist of data arranged _______
(A) Chronologically
(B) Geographically
(C) Both
(D) None
(7) Secular trend refers to _______ component of time series.
(A) Short term
(B) Long term
(C) Both
(D) None
(8) The trend equation of Annual sales of a steel company is y = 12 - 0.7x then the yearly _______ of the time series is 0.7.
(A) Increment
(B) Decrement
(C) Increase
(D) All of these
(9) Methods used in the study of seasonal variations are _______
(A) Method of simple average
(B) Method of ratio to moving average
(C) Method of ratio to trend
(D) All of the above
(10) The component of time series associated in the increase in garment sales during Diwali is _______
(A) Irregular
(B) Secular
(C) Seasonal
(D) Cyclical
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