Stem and Leaf and Line 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

How do you read a stem-and-leaf plot?

Back

In a stem-and-leaf plot, the 'stem' represents the leading digit(s) of the data, while the 'leaf' represents the trailing digit. For example, in '3 | 2', '3' is the stem and '2' is the leaf, representing the number 32.

Front

What is a line plot?

Back

A line plot is a simple way to display data along a number line, where each data point is represented by an 'X' or a dot above the corresponding value.

Front

How do you find the mode in a line plot?

Back

The mode is the value that appears most frequently in the line plot. Count the number of 'X's above each value to determine which one has the most.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set. It shows how spread out the values are.

Front

How do you calculate the range from a stem-and-leaf plot?

Back

To calculate the range from a stem-and-leaf plot, identify the highest and lowest values represented and subtract the lowest from the highest.

Front

What does it mean if a line plot has more 'X's above a certain number?

Back

It means that more students or subjects reported that number, indicating it is a common response or score.

Front

How can you determine how many students scored above a certain percentage using a line plot?

Back

Count the number of 'X's above the values that are greater than the specified percentage.

Front

What is the purpose of using a stem-and-leaf plot?

Back

The purpose is to organize and display data while preserving the original values, making it easier to analyze the distribution.

Front

What does each 'leaf' represent in a stem-and-leaf plot?

Back

Each 'leaf' represents the last digit of a number, while the 'stem' represents the other digits.