Correlation Analysis

It refers to the data that involves two variable.

• Univariate Data

• Bivariate Data

• Multivariate Data

• Bavarian Data

A bivariate analysis that measures the strengths of association between two variables and the direction of the relationship.

• Correlation

• Normal Distribution

• Test Hypothesis

• Random Variable

He discovered the concept of correlation in the late fall of 1888.

• Francis Galton

• Pythagoras

• Georg Cantor

• Karl Pearson

It is a graph that shows how the points of bivariate data are scattered.

• Scatterplot

• Stem-leaf plot

• Histogram

• Instagram

A study compared the number of years of education a person received and that person's average yearly salary. It was determined that the relationship between these two quantities was linear and the correlation coefficient was 0.91. Which conclusion can be made based on the findings of this study?

• There is weak relationship.

• There is a strong relationship.

• There was no relationship

• There was an unpredictable relationship

Which value of r represents data with a strong negative linear correlation between two variables?

• -1.87

• -0.89

• -0.14

• -0.05

Which value of r represents data with a moderate linear correlation between two variables?

• 0.89

• 0.45

• 1.07

• 0.09

What could be the approximate value of the correlation coefficient for the accompanying scatter plot?

• -0.85

• -0.16

• 0.21

• 0.90