Constructing a box and whisker plot  Probability and Statistics  Khan Academy  Summary and Q&A
TL;DR
Learn how to create a box and whisker plot to visualize the spread of data and find the median distance people travel to a restaurant.
Questions & Answers
Q: Why did the restaurant owner want to create a graph?
The owner wanted to understand the spread of the distances patrons travel to the restaurant and find the median distance.
Q: What is a box and whisker plot?
A box and whisker plot is a visual representation of numerical data that shows the spread, median, and range of the dataset.
Q: How is the median determined in a box and whisker plot?
The median is the middle value of the dataset. If there are two middle values, the mean of those values is taken as the median.
Q: What does the box in the plot represent?
The box represents the middle 50% of the dataset, showing the spread and quartiles of the data.
Q: What do the whiskers in the plot represent?
The whiskers show the range of the data, indicating how far the data points extend beyond the quartiles.
Q: What does the median in the plot indicate?
The median in the plot represents the middle distance people travel to the restaurant.
Summary & Key Takeaways

A restaurant owner wants to analyze the distances patrons travel to their restaurant.

To visualize the spread of distances and find the median, a box and whisker plot is recommended.

The data is ordered, the median is determined, and the plot is created to show the spread and median distance.