Bivariate Data Associations

What would be the correlation be between study time and test grades?

• positive correlation

• negative correlation

• no correlation

• cannot be determined

Describe the correlation in the graph shown.

• Strong Negative

• Strong Positive

• Weak Negative

• Weak Positive

What is bivariate data?

• Data that involves two variables

• Data that involves one variable

• Data about twins

• Data that is released twice a year

If the points in a scatterplot seem to approximate a straight line, the association is known as:

• Linear form

• Non-linear form

• quadratic form

• bivariate

When the dots in a scatterplot are not close together at all, the association is said the be:

• Strong

• Moderate

• Weak

• Non-existent

What type of correlation (association)?
The outside temperature and the amount of layers you wear. 

• Positive correlation

• Negative correlation

• No correlation

_________________ correlation is when one set of data increases and the other set of data also increases.

• Positive

• Negative

• No

Answer explanation

Positive correlation means that as one set of data increases, the other set of data also increases, indicating a direct relationship between the two variables.

_________________ correlation is when one set of data increases and the other set of data decreases.

• Positive

• Negative

• No

Answer explanation

Negative correlation is when one set of data increases and the other set of data decreases, which is the correct choice in this case.

What does bivariate mean?

• variable

• 2 variables

• 3 variables

• 4 variables

Answer explanation

Bivariate means involving or depending on two variables, so the correct choice is 2 variables.

is a diagram that uses coordinates to display values for two variables for a set of data.

• dot plot

• scatter plot

• histogram

• stem and leaf plot