Comparing 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 median of a data set?

Back

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

Front

What does it mean for a data set to be symmetric?

Back

A data set is symmetric if its left and right sides are mirror images of each other when graphed.

Front

What is the measure of center in statistics?

Back

The measure of center is a value that represents the center of a data set, commonly calculated as the mean, median, or mode.

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 data points are arranged in order.

Front

How do you compare two dot plots?

Back

To compare two dot plots, look at their measures of center (mean, median) and variation (range, interquartile range) to see how they differ.

Front

What is variation in a data set?

Back

Variation refers to how spread out the data points are in a data set, indicating the degree of dispersion.

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

What does it mean if two data sets have the same median?

Back

If two data sets have the same median, it means that the middle value of both sets is equal, but it does not imply that the data sets are identical.

Front

How can you determine which dot plot has a longer wait time?

Back

Compare the measures of center (like median) and look for the plot with the higher value to determine which has a longer wait time.