Scatterplots and Mean Absolute Deviation

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables, with one variable plotted along the x-axis and the other along the y-axis.

Front

What does the mean absolute deviation (MAD) measure?

Back

Mean absolute deviation measures the average distance between each data point and the mean of the data set, indicating how spread out the data points are.

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, add all the numbers in the data set together and then divide by the total number of values.

Front

What is the purpose of a trend line in a scatterplot?

Back

A trend line is used to show the general direction or pattern of the data points in a scatterplot, helping to predict values.

Front

How do you find the surface area of a rectangular prism?

Back

The surface area of a rectangular prism is calculated using the formula: SA = 2(lw + lh + wh), where l is length, w is width, and h is height.

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 it mean for two equations to be equivalent?

Back

Two equations are equivalent if they have the same solution set, meaning they represent the same line or relationship.

Front

How do you interpret the slope of a trend line in a scatterplot?

Back

The slope of a trend line indicates the rate of change between the two variables; a positive slope means as one variable increases, the other does too.

Front

What is the formula for calculating the mean absolute deviation?

Back

MAD = (Σ|xi - mean|) / n, where xi represents each data point, mean is the average of the data set, and n is the number of data points.

Front

How can you determine the number of rides needed for two fairs to be of equal value?

Back

Set up an equation based on the costs of entry and rides for both fairs and solve for the number of rides.