Mean, Median, Mode, and Range

Front

What is the mean?

Back

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

Front

What is the median?

Back

The median is the middle number in a sorted list of numbers. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mode?

Back

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

Front

What is the range?

Back

The range is the difference between the largest and smallest numbers in a data set.

Front

How do you find the mean of 4, 8, 6, 5?

Back

Add the numbers: 4 + 8 + 6 + 5 = 23. Then divide by 4 (the number of values): 23 ÷ 4 = 5.75.

Front

How do you find the median of 3, 1, 2?

Back

First, sort the numbers: 1, 2, 3. The median is the middle number, which is 2.

Front

What is the mode of the set: 2, 3, 4, 4, 5?

Back

The mode is 4, as it appears most frequently.

Front

What is the range of the set: 10, 15, 20, 5?

Back

The range is 20 - 5 = 15.

Front

If the scores are 90, 92, 94, 94, 95, what is the mode?

Back

The mode is 94, as it appears more than any other score.

Front

True or False: The median can be affected by extreme values in a data set.

Back

False. The median is not affected by extreme values.