Question

what is the mean of the numbers 4, 5, and 6?

Explanation:

Step1: Recall mean formula

The mean (average) of a set of numbers is given by $\frac{\text{sum of numbers}}{\text{number of numbers}}$.

Step2: Calculate sum of numbers

The sum of 4, 5 and 6 is $4 + 5+6=15$.

Step3: Determine number of numbers

There are 3 numbers.

Step4: Calculate the mean

The mean is $\frac{15}{3}=5$.

Answer:

5