Interpreting Boxplots

Front

What is a boxplot?

Back

A boxplot is a graphical representation of a dataset that shows its minimum, first quartile, median, third quartile, and maximum.

Front

What does the 'whisker' in a boxplot represent?

Back

The whiskers in a boxplot extend from the box to the smallest and largest values that are not outliers.

Front

How do you calculate the range of a dataset?

Back

The range is calculated by subtracting the smallest value from the largest value in the dataset.

Front

What is an outlier?

Back

An outlier is a number that is significantly higher or lower than the other numbers in a dataset.

Front

What does a symmetric distribution look like?

Back

A symmetric distribution has a mirror image on either side of the center, meaning the left and right sides are approximately equal.

Front

When is the mean the best measure of center?

Back

The mean is the best measure of center when the data is symmetrically distributed without outliers.

Front

What does it mean for data to be 'spread out'?

Back

Data is considered 'spread out' when there is a large range between the smallest and largest values, indicating variability.

Front

How do you find the median of a dataset?

Back

To find the median, arrange the numbers in order and identify the middle number. If there are two middle numbers, calculate their average.

Front

What is the interquartile range (IQR)?

Back

The IQR is the difference between the first quartile (Q1) and the third quartile (Q3) and measures the spread of the middle 50% of the data.

Front

What percentage of data falls within the interquartile range?

Back

The interquartile range contains the middle 50% of the data.