Mean and Median

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 count of numbers.

Front

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

Back

To calculate the mean, sum all the numbers in the set and divide by the total number of values.

Front

What is the median?

Back

The median is the middle value in a set of numbers when they are arranged in ascending order.

Front

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

Back

To find the median, arrange the numbers in order and identify the middle number. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the difference between mean and median?

Back

The mean is the average of all values, while the median is the middle value that separates the higher half from the lower half of the data set.

Front

Given the scores: 34%, 44%, 75%, 21%, 98%, 86%, 71%, 76%, 63%, 55%, how many students scored above the mean?

Back

6 students scored above the mean.

Front

Calculate the mean of the following house prices: £175,000, £184,000, £150,000, £201,000, £191,000.

Back

The mean price is £180,200.

Front

Find the mean of these numbers: 20, 30, 24, 32.

Back

The mean is 26.5.

Front

What is the median of the following set of numbers: 15, 17, 25, 32?

Back

The median is 17.

Front

If the mean of six numbers is 5 and five of the numbers are 6, 6, 5, 3, and 1, what is the sixth number?

Back

The sixth number is 9.