Dot plots and histograms

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

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, using bars to show the frequency of data points in specified ranges.

Front

What does the peak of a data set represent?

Back

The peak of a data set represents the mode, or the value that appears most frequently.

Front

How do you find the mode of a data set?

Back

To find the mode, identify the number that occurs most often in the data set.

Front

What is the range of a data set?

Back

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

Front

How do you interpret a dot plot?

Back

A dot plot is interpreted by counting the number of dots above each value to see how many times each value occurs.

Front

What is the purpose of a histogram?

Back

The purpose of a histogram is to show the distribution of data and to visualize how often each range of values occurs.

Front

How can you determine the frequency of a value in a histogram?

Back

The frequency of a value in a histogram is determined by the height of the bar that corresponds to that value's range.

Front

What does it mean if a histogram is skewed to the right?

Back

If a histogram is skewed to the right, it means that there are more lower values and fewer higher values in the data set.

Front

What does it mean if a histogram is symmetric?

Back

If a histogram is symmetric, it means that the data is evenly distributed around the center.