What is the mean of 4, 5, 6, 7, and 8?

The mean of 4, 5, 6, 7, and 8 is 6.

To find the mean of a set of numbers, you first add all the numbers together and then divide by the number of values in the set. In this case, we have the numbers 4, 5, 6, 7, and 8. Let's add them up: 4 + 5 + 6 + 7 + 8 = 30.

Next, we count how many numbers are in the set. Here, there are 5 numbers. To find the mean, we divide the total sum by the number of values: 30 ÷ 5 = 6. Therefore, the mean of these numbers is 6.

The mean is a type of average that gives us an idea of the central value of a set of numbers. It's useful because it summarises a set of data with a single number, making it easier to understand and compare different sets of data. In this example, the mean tells us that if the values were evenly distributed, each would be 6.