Mean, Median, Mode, and Range

Front

What is the definition of Mean?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Front

How do you calculate the Median?

Back

To find the median, arrange the numbers in ascending order and identify the middle number. If there is an even number of observations, the median is the average of the two middle numbers.

Front

What is Mode?

Back

The mode is the number 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 a data set.

Front

Find the mean of these numbers: 5, 11, 2, 12, 4, 2.

Back

Mean = (5 + 11 + 2 + 12 + 4 + 2) / 6 = 6.

Front

What is the median of the following data set: 3, 17, 17, 11, 8, 13, 5, 18?

Back

First, arrange the numbers: 3, 5, 8, 11, 13, 17, 17, 18. The median is (11 + 13) / 2 = 12.

Front

Can a data set have more than one mode?

Back

Yes, a data set can be bimodal (two modes) or multimodal (more than two modes) if multiple values appear with the same highest frequency.

Front

What is the median of the following numbers: 60, 58, 52, 48, 60, 67?

Back

Arrange the numbers: 48, 52, 58, 60, 60, 67. The median is (58 + 60) / 2 = 59.

Front

If a data set has an even number of observations, how do you find the median?

Back

You take the average of the two middle numbers after sorting the data.

Front

What is the mode of the data set: 1, 2, 2, 3, 4?

Back

The mode is 2, as it appears most frequently.