Mean, Median, Mode, 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 are two middle numbers, add them together and divide by 2.

Front

What is the definition of Mode?

Back

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

Front

What is the definition of Range?

Back

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

Front

Calculate the Mean: 10, 20, 30, 40

Back

Mean = (10 + 20 + 30 + 40) / 4 = 25

Front

Calculate the Median: 3, 1, 4, 2

Back

Median = 2.5 (arranged: 1, 2, 3, 4; average of 2 and 3)

Front

Calculate the Mode: 1, 2, 2, 3, 4

Back

Mode = 2 (it appears most frequently)

Front

Calculate the Range: 5, 10, 15, 20

Back

Range = 20 - 5 = 15

Front

What is the Mean of these numbers: 4, 4, 4, 4?

Back

Mean = 4 (all numbers are the same)

Front

If the scores are: 50, 60, 70, 80, what is the Median?

Back

Median = 70 (middle value in ordered list)