# Quiz (Bivariate and Pearson Correlation)

## Quiz by Louise Lyn Angeles

Statistics and Probability
Philippines Curriculum: SHS Core Subjects (MELC)

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10 questions
• Q1

Couples who share more similar attitudes indicate that they are more satisfied with their relationship. This reflects a ___________ correlation.

No correlation

Strong negative

Strong Positive

Weak Positive

30s
• Q2

Correlation is _____type of statistical analysis.

trivariate

multivariate

univariate

bivariate

30s
• Q3

The diagram shown is an example of a ____________.

histogram illustrating a lack of correlation between tobacco and alcohol

scatter plot illustrating a positive correlation between tobacco and alcohol

scatter plot illustrating a perfect correlation between tobacco and alcohol

histogram illustrating a positive correlation between tobacco and alcohol

60s
• Q4

What is the relationship of this statement: The temperature outside and the number of layers of clothes you need to stay warm.

Negative correlation

Weak Positive

Positive correlation

No correlation

60s
• Q5

The measure of the linear correlation (dependence) between two variables X and Y, giving a value between +1 and −1 is called ______.

Pearson a

Pearson r

Pearson s

Pearson z

60s
• Q6

The closer the value of r is to 1 or -1, the _____ is the linear relationship between the two variables.

weaker

direct

stronger

inverse

60s
• Q7

The strength of linear relationship between x and y is very weak if the absolute value of correlation coefficient value is

0-0.2

0.6-0.8

0.4-0.6

0.2-0.4

60s
• Q8

A plot of pairs of values of two variables in a rectangular coordinate plane displaying a relationship between the two variables.

Outlier

Graph

Pearson

Scatter Diagram

60s
• Q9

Which scatterplot shows most likely a positive correlation?

C only

Both A and B

A only

B only

60s
• Q10

In terms of strength of association, how do you compare scatterplot I with II?

The strength of association in Scatterplot II is greater.

The strength of association in Scatterplot I is greater.

The strength of association in the scatterplots cannot be compared.

The strength of association in both scatterplots II is the same.

60s

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