Correlation Test

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Correlation Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Which method of measuring correlation measures any type of relationship?

A
Both

B
Karl Pearson’s coefficient of correlation

C
Spearman’s rank correlation.

D
None

Solution

Explanation:

Only karl Pearson method shows relation between two variables and spearman correlation shows ordinal aspects of the variables
Question 2
1 / -0

What is the range of simple correlation coefficient?

A
1< r < 1

B
1< r > 1

C
-1< r < 1

D
1> r > 1

Solution

Explanation:

Because the correlation between two variables can be negative or positive or no relation
Question 3
1 / -0

Coefficient of correlation is also known as product moment correlation.

A
Karl Pearson’s coefficient of correlation .

B
None

C
Both

D
Spearman’s rank correlation.

Solution

Explanation:

As it is the product of two different random variables.also in denominator there is product of standard deviation
Question 4
1 / -0

If r is near to zero (i.e.) 0.1,-0.1, (or) 0.2 there is

A
less degree of correlation

B
Both

C
high degree of correlation

D
None

Solution

Explanation:

As the range of correlation is 0 to 1(less to high degree correlation)
Question 5
1 / -0

When r = 1, there is perfect

A
perfect -ve relationship between the variables

B
no relationship between the variables

C
None

D
perfect +ve relationship between the variables

Solution

Explanation:

As 1 shows perfect relation between two variables and the + sign shows positive relation
Question 6
1 / -0

Who was a great biometrician and statistician?

A
Kally Pearson

B
Kaerl Pearson

C
Kal Pearson

D
Karl Pearson

Solution

Explanation:

Karl Pearson was an influential biometrition and statistician who has been credited with establishing the discipline of mathematical statistics.
Question 7
1 / -0

Correlation coefficient is denoted by

A
r

B
co

C
l

D
c

Solution

Explanation:

"r" denotes Karl Pearson's coefficient of correlation.
Question 8
1 / -0

If the ratio of change between the two variables is a constant then there will be

A
Non-linear correlation

B
Negative correlation

C
Positive correlation

D
Linear correlation

Solution

Explanation:

Because due to this constant change, the data form a straight line on graph paper
Question 9
1 / -0

When the correlation is only studied between two variables it is called

A
Positive correlation

B
Negative correlation

C
Multiple correlation

D
Simple correlation

Solution

Explanation:

Because it is very easy and simple to calculate correlation between two variables.
Question 10
1 / -0

If the coefficient correlation exactly equals to -1 then it will be effect

A
Simple correlation

B
Negative correlation

C
Positive correlation

D
Multiple correlation

Solution

Explanation:

Because a negative value of correlation indicates an inverse relation.

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Correlation Test - 1

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Correlation Test - 1

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SHARING IS CARING

Question 1

Both

Karl Pearson’s coefficient of correlation

Spearman’s rank correlation.

None

Solution

Question 2

1< r < 1

1< r > 1

-1< r < 1

1> r > 1

Solution

Question 3

Karl Pearson’s coefficient of correlation .

None

Both

Spearman’s rank correlation.

Solution

Question 4

less degree of correlation

Both

high degree of correlation

None

Solution

Question 5

perfect -ve relationship between the variables

no relationship between the variables

None

perfect +ve relationship between the variables

Solution

Question 6

Kally Pearson

Kaerl Pearson

Kal Pearson

Karl Pearson

Solution

Question 7

r

co

l

c

Solution

Question 8

Non-linear correlation

Negative correlation

Positive correlation

Linear correlation

Solution

Question 9

Positive correlation

Negative correlation

Multiple correlation

Simple correlation

Solution

Question 10

Simple correlation

Negative correlation

Positive correlation

Multiple correlation

Solution

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