Dot Plot - Mean, Median, Mode, and Range

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots plotted on a number line, representing the frequency of data points.

Front

How do you find the mean of a data set?

Back

To find the mean, add all the numbers in the data set and then divide by the total number of values.

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you determine the mode of a data set?

Back

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

Front

What is the range of a data set?

Back

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

Front

If a dot plot shows the numbers 2, 3, 3, 5, 7, what is the mode?

Back

The mode is 3, as it appears most frequently.

Front

Calculate the mean of the following numbers: 4, 8, 6, 5, 3.

Back

The mean is (4 + 8 + 6 + 5 + 3) / 5 = 26 / 5 = 5.2.

Front

What is the median of the following numbers: 1, 3, 3, 6, 7, 8?

Back

The median is (3 + 6) / 2 = 4.5.

Front

How do you find the range of the numbers 10, 15, 20, 25?

Back

The range is 25 - 10 = 15.

Front

What is the mean of the following data set: 10, 20, 30, 40, 50?

Back

The mean is (10 + 20 + 30 + 40 + 50) / 5 = 30.