Stem and Leaf and Histograms

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 range of a data set?

Back

The range is found by subtracting the smallest value from the largest value in the data set.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, where the data is divided into intervals (bins) and the frequency of data points in each interval is represented by the height of the bars.

Front

What is the purpose of using a histogram?

Back

The purpose of using a histogram is to visualize the distribution of data and to identify patterns, trends, and outliers.

Front

How do you determine the frequency of a specific interval in a histogram?

Back

The frequency of a specific interval is determined by counting the number of data points that fall within that interval.

Front

What is an interval in the context of histograms?

Back

An interval is a range of values that data points can fall into, often represented as a range (e.g., 0-10, 10-20).

Front

How can you interpret the height of the bars in a histogram?

Back

The height of the bars in a histogram indicates the frequency of data points within each interval; taller bars represent more data points.

Front

What is the mode of a data set?

Back

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