Box and Whisker Plots

Front

What does point C on the box plot represent?

Back

Median

Front

How can you determine which data set has a larger IQR?

Back

By comparing the values of Q3 and Q1 for each data set; the larger difference indicates a larger IQR.

Front

How do you calculate the range of a data set?

Back

Range = Maximum value - Minimum value.

Front

What is an outlier in a data set?

Back

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

Front

What is the relationship between the median and the mean in a skewed data set?

Back

In a skewed data set, the median is less affected by outliers and may differ significantly from the mean.

Front

What are the components of a box plot?

Back

Minimum, Q1, Median, Q3, Maximum.

Front

What does Q1 represent in a box plot?

Back

The first quartile, which is the median of the lower half of the data.

Front

What does Q3 represent in a box plot?

Back

The third quartile, which is the median of the upper half of the data.

Front

How do you identify an outlier using the IQR method?

Back

An outlier is any data point that is below Q1 - 1.5*IQR or above Q3 + 1.5*IQR.

Front

What is the purpose of a box plot?

Back

To visually summarize the distribution of a data set and identify outliers.