Dot plots and histograms

Front

What is a dot plot?

Back

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

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data, where each bar represents an interval of values.

Front

How do you find the range of a data set?

Back

To find the range, subtract the minimum value from the maximum value in the data set.

Front

What does it mean to have a frequency of a data point?

Back

Frequency refers to how many times a particular value or range of values occurs in a data set.

Front

What is the purpose of using a dot plot?

Back

Dot plots are used to display small sets of data clearly and to show the distribution of data points.

Front

What is the purpose of using a histogram?

Back

Histograms are used to show the distribution of a large set of data and to visualize the frequency of data points within specified intervals.

Front

How can you determine which interval has the greatest frequency in a histogram?

Back

Look for the tallest bar in the histogram; the height of the bar indicates the frequency of that interval.

Front

What is an interval in the context of a histogram?

Back

An interval is a range of values that groups data points together in a histogram.

Front

How do you interpret a dot plot?

Back

In a dot plot, each dot represents one data point, and you can quickly see how many data points fall into each category.

Front

What is the difference between a dot plot and a histogram?

Back

A dot plot shows individual data points, while a histogram groups data into intervals and shows the frequency of those intervals.