Frequency Tables and Dot Plots

Front

What is a frequency table?

Back

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

Front

What is a dot plot?

Back

A dot plot is a simple way to display data using dots above a number line, where each dot represents one data point.

Front

How do you read a dot plot?

Back

To read a dot plot, count the number of dots above each value to see how many times that value occurs.

Front

What does the highest stack of dots in a dot plot represent?

Back

The highest stack of dots represents the mode, or the value that occurs most frequently.

Front

What is the mode in a set of data?

Back

The mode is the number that appears most often in a data set.

Front

How can you find the total number of items in a frequency table?

Back

Add up all the frequencies in the table to find the total number of items.

Front

What is the purpose of a frequency table?

Back

The purpose of a frequency table is to summarize and organize data to make it easier to understand.

Front

What does it mean if a dot plot has no dots above a number?

Back

If there are no dots above a number, it means that value did not occur in the data set.

Front

How can you compare two sets of data using dot plots?

Back

You can compare two sets of data by looking at the height of the stacks of dots for each value.

Front

What is a key feature of a frequency table?

Back

A key feature of a frequency table is that it lists each unique value along with its frequency.