Correlation CBSE Questions & Answers

Correlation

This is Economics Class 11 Correlation CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
If all the plotted points form a straight line from lower left hand corner to the upper right hand corner then there is
  • A
    Perfect positive correlation
    Correct
  • B
    Simple correlation
  • C
    Negative correlation
  • D
    Multiple correlation
2
If the plotted points in the plane form a band and they show a rising trend from the lower left hand corner to the upper right hand corner the two variables are
  • A
    Highly Positive
    Correct
  • B
    None
  • C
    Highly Negative
  • D
    Both
3
Examples of negative correlation are
  • A
    Demand of a commodity may go down as a result of rise in prices
    Correct
  • B
    Age of husband and age of wife.
  • C
    . The family income and expenditure on luxury items.
  • D
    Increase in height and weight.
4
If the plotted points in the plane are spread all over the diagram there is
  • A
    Highly Positive
    Correct
  • B
    No correlation
  • C
    Highly Negative
  • D
    None
5
Study of price and demand eliminating supply side
  • A
    Both
  • B
    Partial correlation
    Correct
  • C
    Total correlation
  • D
    None
6
Rearrange the following steps a. Find the mean of two series x and y b. Take deviation of the two series from x and y c. Square the deviations and get the total d. Multiply the deviations of x and y and get the total divide it by n e. Substitute the values in the formulaOptions are as follows
  • A
    b,a,c,d,e
  • B
    b,a,d,c,e
  • C
    a,c,b,d,e
  • D
    a,b,c,d,e
    Correct
7
Following are the examples of positive correlation except
  • A
    Increase in height and weight.
  • B
    Price of commodity and amount of supply
  • C
    Age of husband and age of wife.
  • D
    Sale of woolen garments and day temperature
    Correct
8
Degree of Correlation Between + 0.25 and + 0.75 is
  • A
    Perfect
    Correct
  • B
    Moderate
  • C
    High
  • D
    Low
9
The diagrammatic representation of two variables is called _________
  • A
    Histogram
  • B
    Scatter diagram
    Correct
  • C
    None
  • D
    Bar Diagram
10
The relationship between three or more variables is studied with the help of _________ correlation
  • A
    Double
  • B
    Multiple
    Correct
  • C
    Single
  • D
    None
11
If rxy = ryx, correlation between x and y is
  • A
    None linear
  • B
    None
  • C
    No correlation
  • D
    Symmetric
    Correct
12
The nature of correlation for shoe size and IQ is _________
  • A
    No correlation
    Correct
  • B
    None
  • C
    Non-linear
  • D
    Linear
13
Calculate the correlation coefficient between x and y and comment on their relationship
Question 13 figure 1
  • A
    0.0
    Correct
  • B
    1
  • C
    0.47
  • D
    0.25
14
Calculate the correlation coefficient between x and y and comment on their relationship
Question 14 figure 1
  • A
    -1
  • B
    1.0
    Correct
  • C
    -0.25
  • D
    0.75
15
Calculate Karl Pearson’s coefficient of correlation on the following data:
Question 15 figure 1
  • A
    0.45
  • B
    0.89
  • C
    0.75
  • D
    0.98
    Correct