Deck 1: Correlation Analysis and Coefficient of Correlation

ملء الشاشة (f)
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سؤال
The techniques which provide the decision maker a systematic and powerful means of analysis to explore policies for achieving predetermined goals are called..........................

A)Correlation techniques
B)Mathematical techniques
C)Quantitative techniques
D)None of the above
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سؤال
If change in one variable results a corresponding change in the other variable, then the variables are.........................

A)Correlated
B)Not correlated
C)Any of the above
D)None of the above
سؤال
When the values of two variables move in the same direction, correlation is said to be ............................

A)Linear
B)Non-linear
C)Positive
D)Negative
سؤال
When the values of two variables move in the opposite directions, correlation is said to be ............................

A)Linear
B)Non-linear
C)Positive
D)Negative
سؤال
When the amount of change in one variable leads to a constant ratio of change in the other variable, then correlation is said to be .........................

A)Linear
B)Non-linear
C)Positive
D)Negative
سؤال
...........................attempts to determine the degree of relationship between variables.

A)Regression analysis
B)Correlation analysis
C)Inferential analysis
D)None of these
سؤال
Non-linear correlation is also called.....................................

A)Non-curvy linear correlation
B)Curvy linear correlation
C)Zero correlation
D)None of these
سؤال
Scatter diagram is also called ......................

A)Dot chart
B)Correlation graph
C)Both a and b
D)None of these
سؤال
Numerical measure of correlation is called .....................

A)Coefficient of correlation
B)Coefficient of determination
C)Coefficient of non-determination
D)Coefficient of regression
سؤال
Coefficient of correlation explains:

A)Concentration
B)Relation
C)Dispersion
D)Asymmetry
سؤال
A high degree of +ve correlation between availability of rainfall and weight of weight of people is:

A)A meaningless correlation
B)A spurious correlation
C)A nonsense correlation
D)All of the above
سؤال
If the ratio of change in one variable is equal to the ratio of change in the other variable, then the correlation is said to be .....................

A)Linear
B)Non-linear
C)Curvilinear
D)None of these
سؤال
Pearsonian correlation coefficient if denoted by the symbol ...............

A)K
B)r
C)R
D)None of these
سؤال
If r= +1, the correlation is said to be ...................

A)High degree of +ve correlation
B)High degree of -ve correlation
C)Perfect +ve correlation
D)Perfect -ve correlation
سؤال
If the dots in a scatter diagram fall on a narrow band, it indicates a ....................... degree of correlation.

A)Zero
B)High
C)Low
D)None of these
سؤال
If all the points of a dot chart lie on a straight line vertical to the X-axis, then coefficient of correlation is ...................

A)0
B)+1
C)-1
D)None of these
سؤال
If all the points of a dot chart lie on a straight line parallel to the X-axis, it denotes .................................of correlation.

A)High degree
B)Low degree
C)Moderate degree
D)Absence
سؤال
If dots are lying on a scatter diagram in a haphazard manner, then r = ......................

A)0
B)+1
C)-1
D)None of these
سؤال
The unit of Coefficient of correlation is ........................

A)Percentage
B)Ratio
C)Same unit of the data
D)No unit
سؤال
Product moment correlation method is also called ........................

A)Rank correlation
B)Pearsonian correlation
C)Concurrent deviation
D)None of these
سؤال
The -ve sign of correlation coefficient between X and Y indicates.............................

A)X decreasing, Y increasing
B)X increasing, Y decreasing
C)Any of the above
D)There is no change in X and Y
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ملء الشاشة (f)
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Deck 1: Correlation Analysis and Coefficient of Correlation
1
The techniques which provide the decision maker a systematic and powerful means of analysis to explore policies for achieving predetermined goals are called..........................

A)Correlation techniques
B)Mathematical techniques
C)Quantitative techniques
D)None of the above
Quantitative techniques
2
If change in one variable results a corresponding change in the other variable, then the variables are.........................

A)Correlated
B)Not correlated
C)Any of the above
D)None of the above
Correlated
3
When the values of two variables move in the same direction, correlation is said to be ............................

A)Linear
B)Non-linear
C)Positive
D)Negative
Positive
4
When the values of two variables move in the opposite directions, correlation is said to be ............................

A)Linear
B)Non-linear
C)Positive
D)Negative
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5
When the amount of change in one variable leads to a constant ratio of change in the other variable, then correlation is said to be .........................

A)Linear
B)Non-linear
C)Positive
D)Negative
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6
...........................attempts to determine the degree of relationship between variables.

A)Regression analysis
B)Correlation analysis
C)Inferential analysis
D)None of these
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7
Non-linear correlation is also called.....................................

A)Non-curvy linear correlation
B)Curvy linear correlation
C)Zero correlation
D)None of these
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8
Scatter diagram is also called ......................

A)Dot chart
B)Correlation graph
C)Both a and b
D)None of these
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9
Numerical measure of correlation is called .....................

A)Coefficient of correlation
B)Coefficient of determination
C)Coefficient of non-determination
D)Coefficient of regression
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10
Coefficient of correlation explains:

A)Concentration
B)Relation
C)Dispersion
D)Asymmetry
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11
A high degree of +ve correlation between availability of rainfall and weight of weight of people is:

A)A meaningless correlation
B)A spurious correlation
C)A nonsense correlation
D)All of the above
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12
If the ratio of change in one variable is equal to the ratio of change in the other variable, then the correlation is said to be .....................

A)Linear
B)Non-linear
C)Curvilinear
D)None of these
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13
Pearsonian correlation coefficient if denoted by the symbol ...............

A)K
B)r
C)R
D)None of these
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14
If r= +1, the correlation is said to be ...................

A)High degree of +ve correlation
B)High degree of -ve correlation
C)Perfect +ve correlation
D)Perfect -ve correlation
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15
If the dots in a scatter diagram fall on a narrow band, it indicates a ....................... degree of correlation.

A)Zero
B)High
C)Low
D)None of these
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16
If all the points of a dot chart lie on a straight line vertical to the X-axis, then coefficient of correlation is ...................

A)0
B)+1
C)-1
D)None of these
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17
If all the points of a dot chart lie on a straight line parallel to the X-axis, it denotes .................................of correlation.

A)High degree
B)Low degree
C)Moderate degree
D)Absence
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18
If dots are lying on a scatter diagram in a haphazard manner, then r = ......................

A)0
B)+1
C)-1
D)None of these
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19
The unit of Coefficient of correlation is ........................

A)Percentage
B)Ratio
C)Same unit of the data
D)No unit
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20
Product moment correlation method is also called ........................

A)Rank correlation
B)Pearsonian correlation
C)Concurrent deviation
D)None of these
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21
The -ve sign of correlation coefficient between X and Y indicates.............................

A)X decreasing, Y increasing
B)X increasing, Y decreasing
C)Any of the above
D)There is no change in X and Y
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افتح القفل للوصول البطاقات البالغ عددها 21 في هذه المجموعة.