Dot plots and histograms

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots representing the frequency of data points. Each dot represents one occurrence of a value.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, where the data is divided into bins or intervals, and the height of each bar represents the frequency of data points in that interval.

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. Each dot represents one data point.

Front

How do you read a histogram?

Back

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

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 larger sets of continuous data and to identify patterns such as skewness or modality.

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 data points in those intervals.

Front

How can you find the mode using a dot plot?

Back

The mode is the value that appears most frequently in the dot plot, represented by the column with the most dots.

Front

How can you find the mode using a histogram?

Back

The mode is the interval with the highest bar in the histogram, indicating the range with the most data points.

Front

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

Back

A right-skewed histogram indicates that most data points are concentrated on the left side, with a few larger values extending to the right.