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 number that appears most frequently in a data set. A set can have one mode, more than one mode, or no mode at all.

Front

What is the range?

Back

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

Front

How do you find the mean of 2, 57, 38, 42, 6?

Back

Add the numbers: 2 + 57 + 38 + 42 + 6 = 145. Then divide by the count of numbers (5): 145 ÷ 5 = 29.

Front

How do you find the median of 1, 2, 2, 8, 9, 14?

Back

First, sort the numbers: 1, 2, 2, 8, 9, 14. Since there are 6 numbers (even), the median is the average of the 3rd and 4th numbers: (2 + 8) ÷ 2 = 5.

Front

What is the mode of 2, 2, 2, 4, 4, 5, 6, 6, 6, 7?

Back

The mode is 2 and 6, as both appear most frequently.

Front

What is the range of 3, 4, 5, 5, 5, 6, 7?

Back

The range is the highest number (7) minus the lowest number (3): 7 - 3 = 4.

Front

If a data set has no repeating numbers, what can you say about the mode?

Back

If there are no repeating numbers, the data set has no mode.

Front

What is the first step to find the median?

Back

The first step to find the median is to sort the numbers in ascending order.