Box Plots and IQR

Front

What is a box plot?

Back

A box plot, also known as a whisker plot, is a graphical representation of a dataset that shows its minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

What does IQR stand for?

Back

IQR stands for Interquartile Range, which is the difference between the first quartile (Q1) and the third quartile (Q3) in a dataset.

Front

How do you calculate the IQR?

Back

IQR = Q3 - Q1.

Front

What is the median in a dataset?

Back

The median is the middle value when the data is arranged in ascending order.

Front

How do you find the median of an even set of numbers?

Back

For an even set of numbers, the median is the average of the two middle numbers.

Front

What is the first quartile (Q1)?

Back

Q1 is the median of the lower half of the dataset, representing the 25th percentile.

Front

What is the third quartile (Q3)?

Back

Q3 is the median of the upper half of the dataset, representing the 75th percentile.

Front

What does the whisker in a box plot represent?

Back

The whiskers in a box plot extend from the quartiles to the minimum and maximum values, showing the range of the data.

Front

If the data set is 50, 60, 82, 86, 94, 110, what is the IQR?

Back

The IQR is 34.

Front

In a box plot, what does the line inside the box represent?

Back

The line inside the box represents the median of the dataset.