Unit 8: Bivariate Data Review

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 graph that displays values for two variables for a set of data, showing how one variable is affected by another.

Front

What is a 'Line of Best Fit'?

Back

A 'Line of Best Fit' is a straight line that best represents the data on a scatter plot, indicating the trend of the data.

Front

How do you calculate the percentage of a subgroup in a survey?

Back

To calculate the percentage, divide the number of individuals in the subgroup by the total number of individuals surveyed, then multiply by 100.

Front

What does it mean if a scatter plot shows no correlation?

Back

No correlation means that there is no apparent relationship between the two variables being analyzed.

Front

What is the purpose of surveying a population?

Back

The purpose of surveying a population is to gather data and insights about preferences, behaviors, or characteristics of that group.

Front

How can you determine the percentage of people who prefer a certain option in survey results?

Back

To determine the percentage, divide the number of people who chose that option by the total number of respondents, then multiply by 100.

Front

What is the significance of the total number of respondents in a survey?

Back

The total number of respondents is crucial as it provides context for the results and helps ensure the data is representative.

Front

What is a categorical variable?

Back

A categorical variable is a type of variable that can take on one of a limited, fixed number of possible values, representing different categories.

Front

What is a quantitative variable?

Back

A quantitative variable is a variable that can be measured and expressed numerically, allowing for mathematical operations.