Math 8 Unit 6 Test

Front

What is the equation of a trend line?

Back

A trend line is a straight line that best represents the data on a scatter plot. It can be used to predict future values.

Front

What does a negative correlation indicate?

Back

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

Front

What is the equation of the line of best fit?

Back

The line of best fit is a straight line that best represents the data points in a scatter plot. It minimizes the distance between the line and the data points.

Front

How do you calculate relative frequency?

Back

Relative frequency is calculated by dividing the frequency of a specific event by the total number of events.

Front

What does it mean when the number of visitors increases as temperature increases?

Back

This indicates a positive correlation between temperature and the number of visitors.

Front

What is the slope of a line?

Back

The slope of a line represents the rate of change of the dependent variable with respect to the independent variable.

Front

What is the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x is zero.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two variables using dots to represent data points.

Front

What does it mean if there is no correlation between two variables?

Back

No correlation means that there is no predictable relationship between the two variables.

Front

What is the formula for a linear equation?

Back