box plots

What does Q2 represent in a data set?

Q2 represents the median of the data set.

What is the definition of Q1?

Q1 is the median of the first quartile, representing the median of the first 50% of the data.

What is Q3?

Q3 is the median of the second quartile.

What does the five number summary include?

The five number summary includes Min, Q1, Q2, Q3, and Max.

How is the interquartile range (IQR) calculated?

The interquartile range (IQR) is calculated as Q3 - Q1.

What information do regular boxplots not show?

Regular boxplots do not show outliers.

How is the lower cutoff for outliers determined?

The lower cutoff is determined by Q1 - 1.5(IQR).

What is the formula for the upper cutoff for outliers?

The upper cutoff is determined by Q3 + 1.5(IQR).

What indicates the presence of outliers in a data set?

Any values beyond the lower and upper cutoffs are considered outliers.

What is a modified boxplot?

A modified boxplot excludes outliers, where max and min are assigned to the closest data points if the originals are outliers.