At a Glance - Box & Whisker Plots. Box-and-whisker plots are a handy way to display data broken into four quartiles, each with an equal number of data values. The box-and-whisker plot doesn't show frequency, and it doesn't display each individual statistic, but it clearly shows where the middle of the data lies.
How do you find the Q1 and Q3 in a box plot?
Box Plot interquartile range: How to find it
- Step 1: Find Q1. Q1 is represented by the left hand edge of the “box” (at the point where the whisker stops). ...
- Step 2: Find Q3. ...
- Step 3: Subtract the number you found in step 1 from the number you found in step 3.
What is Q1 in box plot?
Q1 – quartile 1, the median of the lower half of the data set. Q2 – quartile 2, the median of the entire data set. Q3 – quartile 3, the median of the upper half of the data set. ... Extreme Values – the smallest and largest values in a data set.
