Dot Plots and Stem and Leaf

Front

What is a dot plot?

Back

A dot plot is a simple visual representation of data where each data point is represented by a dot above a number line.

Front

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

Back

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

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, that helps to visualize the shape of the data distribution.

Front

How do you determine the mode of a data set?

Back

The mode is the value that appears most frequently in a data set.

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.

Front

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

Back

To create a stem-and-leaf plot, separate each data point into a 'stem' (the leading digit or digits) and a 'leaf' (the last digit), then organize the stems in a vertical column with the leaves listed next to them.

Front

What does it mean if a data set has no mode?

Back

If a data set has no mode, it means that no number appears more than once.

Front

How can you interpret a dot plot?

Back

To interpret a dot plot, look at the distribution of dots to understand the frequency of each value and identify trends or patterns in the data.

Front

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

Back

The purpose of using a stem-and-leaf plot is to organize and display data while preserving the original values, making it easier to see the distribution.

Front

What is the difference between median and mean?

Back

The median is the middle value of a data set, while the mean is the average of all values in the data set.