Mean, Median, Mode, 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 number of items.

Front

How do you find the median in a set of numbers?

Back

To find the median, first sort the numbers from least to greatest. If there are two middle numbers, add them together and divide by 2.

Front

What is the mode?

Back

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

Front

What is the range of a set of numbers?

Back

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

Front

How do you calculate the mean of the numbers 2, 9, 10, 6, 8?

Back

Add the numbers: 2 + 9 + 10 + 6 + 8 = 35. Then divide by the number of items (5): 35 ÷ 5 = 7.

Front

What do you do if there are two middle numbers when finding the median?

Back

Add them together and divide by 2.

Front

True or False: To find the median, the data must be sorted from least to greatest first.

Back

True.

Front

What is the first step in finding the range of a set of numbers?

Back

Identify the highest and lowest numbers in the set.

Front

If the numbers are 8, 10, 60, 3, 5, 13, 12, 40, 8, what is the range?

Back

The range is 60 - 3 = 57.

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all items) ÷ (Number of items).