Five Number Summary

Front

What is the Five Number Summary?

Back

The Five Number Summary consists of five key statistics that provide a quick overview of a dataset: Minimum, First Quartile (Q1), Median (Q2), Third Quartile (Q3), and Maximum.

Front

What does the Minimum represent in the Five Number Summary?

Back

The Minimum is the smallest value in a dataset.

Front

What does the First Quartile (Q1) represent?

Back

The First Quartile (Q1) is the median of the lower half of the dataset, representing the 25th percentile.

Front

What is the Median in the context of the Five Number Summary?

Back

The Median (Q2) is the middle value of a dataset when it is ordered from least to greatest.

Front

What does the Third Quartile (Q3) represent?

Back

The Third Quartile (Q3) is the median of the upper half of the dataset, representing the 75th percentile.

Front

What does the Maximum represent in the Five Number Summary?

Back

The Maximum is the largest value in a dataset.

Front

How do you calculate the Median of a dataset?

Back

To calculate the Median, order the data from least to greatest and find the middle value. If there is an even number of observations, average the two middle values.

Front

What is the purpose of the Five Number Summary?

Back

The Five Number Summary provides a quick snapshot of the distribution, spread, and center of a dataset.

Front

If a dataset has the values: 10, 20, 30, 40, 50, what is the Median?

Back

The Median is 30.

Front

In a dataset, if Q1 is 25 and Q3 is 75, what is the Interquartile Range (IQR)?

Back

The Interquartile Range (IQR) is Q3 - Q1, so IQR = 75 - 25 = 50.