Scatter Plot and Linear Regression Review

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship of two data sets.

Front

What type of correlation indicates that as one variable increases, the other variable also increases?

Back

Positive correlation.

Front

What type of correlation indicates that as one variable increases, the other variable decreases?

Back

Negative correlation.

Front

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

Back

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

Front

What is the line of best fit in a scatter plot?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data.

Front

How do you interpret the slope of a line in a linear regression equation?

Back

The slope indicates the rate of change of the dependent variable for each unit change in the independent variable.

Front

Back

The number 8 represents the y-intercept, which is the value of y when x is 0.

Front

In a scatter plot, what does a trend line represent?

Back

A trend line represents the general direction or pattern of the data points.

Front

What is the purpose of using a scatter plot?

Back

The purpose of using a scatter plot is to visually display the relationship between two quantitative variables.

Front

If a scatter plot shows a negative correlation, what can be inferred about the relationship between the two variables?

Back

As one variable increases, the other variable tends to decrease.