Day 4: Scatterplots and Mean Absolute Deviation Review

Front

What is the third step when calculating the Mean Absolute Deviation?

Back

Find the mean of the distances.

Front

Describe the strength and direction of the trend in a scatterplot.

Back

Strong Negative Trend.

Front

Which scatter plot shows a stronger association?

Back

Scatter plot A; its points of data are closer together than B.

Front

Determine the mean absolute deviation of the data: 9, 7, 11, 10, 8.

Back

1.2

Front

What is a scatterplot?

Back

A graph that shows the relationship between two quantitative variables.

Front

What does a positive trend in a scatterplot indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative trend in a scatterplot indicate?

Back

As one variable increases, the other variable decreases.

Front

What is the formula for Mean Absolute Deviation (MAD)?

Back

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

Front

What is an outlier in a dataset?

Back

A data point that is significantly different from the other data points.

Front

How do you find the mean of a dataset?

Back

Add all the values together and divide by the number of values.