Comparing Data

Front

What is the spread of a box plot?

Back

The spread of a box plot is the difference between the maximum and minimum values in the data set.

Front

What does Q2 represent in a box plot?

Back

Q2, or the median, is the middle value of the data set when it is ordered from least to greatest.

Front

What is the interquartile range (IQR)?

Back

The IQR is the difference between the first quartile (Q1) and the third quartile (Q3) and represents the range of the middle 50% of the data.

Front

How do you find Q1 in a box plot?

Back

Q1 is the median of the lower half of the data set, excluding the median if the number of data points is odd.

Front

What does a box plot visually represent?

Back

A box plot visually represents the distribution of a data set, showing the median, quartiles, and potential outliers.

Front

What is the purpose of a box plot?

Back

The purpose of a box plot is to provide a visual summary of the central tendency, variability, and distribution of a data set.

Front

How can you determine if one box plot has a larger spread than another?

Back

You can determine the spread by comparing the range (maximum - minimum) or the IQR of the two box plots.

Front

What does it mean if two box plots have the same median?

Back

If two box plots have the same median, it means that the central value of both data sets is the same, but their spreads may differ.

Front

What is an outlier in a box plot?

Back

An outlier is a data point that lies significantly outside the range of the other data points, often represented as individual points beyond the whiskers of the box plot.

Front

How do you interpret the whiskers in a box plot?

Back

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