Data Representation

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots plotted above a number line, representing the frequency of data points.

Front

How do you find the difference between the heaviest and lightest items in a data set?

Back

Subtract the weight of the lightest item from the weight of the heaviest item.

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.

Front

What does a frequency table show?

Back

A frequency table displays the number of times each value occurs in a data set.

Front

How do you read a dot plot?

Back

Count the number of dots above each value on the number line to determine the frequency of each data point.

Front

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

Back

The stem represents the leading digit(s) of the data values, while the leaves represent the trailing digits.

Front

How can you determine the mode from a frequency table?

Back

The mode is the value that appears most frequently in the data set, which can be identified from the highest frequency in the table.

Front

What is the median in a data set?

Back

The median is the middle value when the data points are arranged in ascending order.

Front

How do you create a frequency table?

Back

List all unique values in the data set and count how many times each value occurs.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in the data set.