Dot plots and histograms

Front

What is a dot plot?

Back

A dot plot is a statistical chart that uses dots to represent the frequency of data points in a dataset.

Front

How do you read a dot plot?

Back

To read a dot plot, count the number of dots above each value on the number line to determine the frequency of each 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 within specified intervals.

Front

How do you read a histogram?

Back

To read a histogram, look at the height of the bars to determine the frequency of data within each interval.

Front

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

Back

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

Front

What does the x-axis represent in a histogram?

Back

The x-axis represents the intervals or bins of data.

Front

What does the y-axis represent in a histogram?

Back

The y-axis represents the frequency of data points within each interval.

Front

How can you determine the mode from a dot plot?

Back

The mode is the value that appears most frequently, which can be identified by the highest stack of dots in a dot plot.

Front

What is the purpose of using a histogram?

Back

The purpose of using a histogram is to visualize the distribution of data and identify patterns, such as skewness or the presence of outliers.

Front

How do you find the total number of data points represented in a histogram?

Back

To find the total number of data points, sum the heights of all the bars in the histogram.