enVision Topic 4 Bivariate Data

Front

What is bivariate data?

Back

Bivariate data involves two variables that can be analyzed to determine relationships or correlations between them.

Front

What is a scatter plot?

Back

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

Front

What does a negative correlation indicate?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Front

What is relative frequency?

Back

Relative frequency is the ratio of the number of times an event occurs to the total number of trials or observations.

Front

How do you calculate relative frequency?

Back

Relative frequency = (Number of favorable outcomes) / (Total number of outcomes) * 100%.

Front

What is the correlation coefficient?

Back

The correlation coefficient is a numerical measure of the strength and direction of a relationship between two variables.

Front

What does a positive correlation indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also increases.

Front

What type of correlation exists between outside temperature and the amount of layers worn?

Back

Negative correlation.

Front

What percentage of girls have blonde hair if 30 out of 100 girls surveyed have blonde hair?

Back

30%.

Front

What is the purpose of a dot plot?

Back

A dot plot is used to display the frequency of data points in a simple and visual way.