Mean, Median, Mode, and Range

Front

What is the mean of a set of numbers?

Back

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

Front

What is the median in a data set?

Back

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

Front

What is the mode of a set of numbers?

Back

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

Front

How do you calculate the range of a set of numbers?

Back

The range is calculated by subtracting the smallest number from the largest number in the set.

Front

What is the formula to find the mean?

Back

Mean = (Sum of all numbers) / (Total number of items)

Front

If the numbers are 2, 4, 4, 6, 8, what is the mode?

Back

The mode is 4, as it appears most frequently.

Front

What is the median of the numbers 3, 1, 4, 2, 5?

Back

First, sort the numbers: 1, 2, 3, 4, 5. The median is 3.

Front

What is the range of the numbers 10, 20, 30, 40, 50?

Back

The range is 50 - 10 = 40.

Front

What does it mean if a data set has no mode?

Back

It means that no number appears more than once in the data set.

Front

How do you find the median of an even set of numbers, for example, 1, 2, 3, 4?

Back

Sort the numbers: 1, 2, 3, 4. The median is (2 + 3) / 2 = 2.5.