8.4 Stem and leaf plots

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, to retain the original data values while showing their distribution.

Front

What does the 'stem' represent in a stem and leaf plot?

Back

The 'stem' represents the leading digit(s) of the data values.

Front

What does the 'leaf' represent in a stem and leaf plot?

Back

The 'leaf' represents the trailing digit(s) of the data values.

Front

How do you find the median in a set of data?

Back

To find the median, arrange the data in ascending order and identify the middle value. If there is an even number of values, average the two middle values.

Front

What is the purpose of a stem and leaf plot?

Back

The purpose of a stem and leaf plot is to organize data to easily see its shape and distribution while preserving the original data values.

Front

How can you determine the mode from a stem and leaf plot?

Back

The mode is the value that appears most frequently in the data set, which can be identified by looking for the leaf that has the most entries.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in the data set.

Front

How do you count the number of data points in a stem and leaf plot?

Back

Count the total number of leaves in the plot; each leaf represents one data point.

Front

What does it mean if a stem and leaf plot is skewed to the right?

Back

If a stem and leaf plot is skewed to the right, it indicates that there are a few high values that are pulling the mean to the right.

Front

What is the highest value in the following stem and leaf plot: 8 | 9 0 1 2?

Back

The highest value is 90.