Solving Problems with Graphs (Stem and leaf, dot plots, and frequency tables)

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a way to display data where each number is split into a 'stem' (the leading digit) and a 'leaf' (the trailing digit). It helps to visualize the distribution of data.

Front

How do you read a dot plot?

Back

In a dot plot, each dot represents one data point. To find the total number of data points, count the dots above each category.

Front

What is a frequency table?

Back

A frequency table is a way to organize data that shows how often each value occurs in a dataset.

Front

How do you find the total from a frequency table?

Back

To find the total, add up all the frequencies (the numbers in the table) to get the overall count of data points.

Front

What does each dot represent in a dot plot?

Back

Each dot in a dot plot represents one individual data point or observation.

Front

How can you determine the mode from a frequency table?

Back

The mode is the value that appears most frequently in the data. Look for the highest frequency in the table.

Front

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

Back

The purpose of a stem-and-leaf plot is to display quantitative data in a way that retains the original data values while showing the shape of the distribution.

Front

How do you calculate the range of a dataset?

Back

The range is calculated by subtracting the smallest value from the largest value in the dataset.

Front

What is the difference between a dot plot and a bar graph?

Back

A dot plot shows individual data points with dots, while a bar graph uses bars to represent the frequency of categories.

Front

How do you interpret a frequency table?

Back

To interpret a frequency table, look at the categories and their corresponding frequencies to understand how data is distributed.