Eighth grade unit nine review

Front

What is the definition of slope in a graph?

Back

Slope is a measure of the steepness or incline of a line, calculated as the rise over run.

Front

What does a positive slope indicate about a graph?

Back

A positive slope indicates that as the x-values increase, the y-values also increase.

Front

What does a negative slope indicate about a graph?

Back

A negative slope indicates that as the x-values increase, the y-values decrease.

Front

What does 'no association' mean in the context of a graph?

Back

'No association' means that there is no discernible relationship between the x and y variables.

Front

How do you calculate the Mean Absolute Deviation (MAD)?

Back

MAD is calculated by finding the average of the absolute differences between each data point and the mean.

Front

What is the formula for finding the median of a data set?

Back

To find the median, arrange the data in numerical order and select the middle value.

Front

What is the definition of range in a data set?

Back

Range is the difference between the highest and lowest values in a data set.

Front

How do you find the median of an even set of numbers?

Back

For an even set, the median is the average of the two middle numbers.

Front

What is the significance of the median in a data set?

Back

The median provides a measure of central tendency that is less affected by outliers than the mean.

Front

What is an example of a data set with a range of 40?

Back

An example is the data set: 40, 80 (Range = 80 - 40 = 40).