Dot Plots

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 mode in a data set?

Back

The mode is the value that appears most frequently in a data set.

Front

What does it mean if a dot plot is skewed left?

Back

A dot plot is skewed left if the tail on the left side is longer or fatter than the right side, indicating that more data points are concentrated on the higher end.

Front

What does it mean if a dot plot is skewed right?

Back

A dot plot is skewed right if the tail on the right side is longer or fatter than the left side, indicating that more data points are concentrated on the lower end.

Front

How do you calculate the median of a data set?

Back

To find the median, arrange the data points in order and identify the middle value. If there is an even number of data points, average the two middle values.

Front

What is the difference between mean and median?

Back

The mean is the average of all data points, while the median is the middle value when the data points are arranged in order.

Front

What is the purpose of a dot plot?

Back

Dot plots are used to visualize the distribution of data points and to identify patterns, trends, and outliers.

Front

How can you determine the total number of data points from a dot plot?

Back

Count the number of dots in the dot plot; each dot represents one data point.

Front

What does it mean if a data set has no mode?

Back

If no number repeats in a data set, it is said to have no mode.

Front

What is the significance of the median in a data set?

Back

The median provides a measure of central tendency that is not affected by extreme values or outliers.