Box Plots and Vocab Flashcard

Front

What is a box plot?

Back

A box plot is a graphical representation that summarizes a dataset using five key measures: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

What does a dot plot represent?

Back

A dot plot is a type of graph that uses dots to show the frequency of data points in a dataset.

Front

How do you determine the median from a box plot?

Back

The median is represented by the line inside the box of a box plot, which divides the dataset into two equal halves.

Front

What is the purpose of the whiskers in a box plot?

Back

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

Front

What does the interquartile range (IQR) represent?

Back

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

Front

How can you identify outliers in a box plot?

Back

Outliers in a box plot are typically represented as individual points that fall outside the whiskers.

Front

What percentage of data lies within one standard deviation of the mean in a normal distribution?

Back

Approximately 68% of the data lies within one standard deviation of the mean in a normal distribution.

Front

What is the significance of the median in a dataset?

Back

The median is the middle value of a dataset when arranged in ascending order, providing a measure of central tendency that is less affected by outliers.

Front

How do you calculate the percentage of data between two values in a box plot?

Back

To calculate the percentage of data between two values, identify the corresponding quartiles and use the box plot to determine the proportion of data within that range.

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram, but retains the original data values.