Scatter Plots word problems

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does a line of best fit represent in a scatter plot?

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 points.

Front

How do you determine the correlation in a scatter plot?

Back

Correlation can be determined by observing the direction of the trend: positive (y increases as x increases), negative (y decreases as x increases), or no correlation (no clear trend).

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

What does a negative slope indicate in a scatter plot?

Back

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

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the value of y when x is 0, representing the starting point of the line on the y-axis.

Front

How can you estimate values using a line of best fit?

Back

You can estimate values by finding the corresponding y value for a given x value on the line of best fit.

Front

What does it mean if the data points are widely scattered in a scatter plot?

Back

Widely scattered data points indicate a weak correlation between the variables.

Front

What is the purpose of using a scatter plot in real-world applications?

Back

Scatter plots are used to visualize relationships between variables, identify trends, and make predictions based on data.

Front

How do you interpret the slope of a line of best fit?

Back

The slope indicates the rate of change between the two variables; a steeper slope means a greater change.