Mean of 2, 4, 6, and 8
The mean of 2, 4, 6, and 8 is 5.
Problem
Answer
Step-by-step solution
Step 1: Sum
2 + 4 + 6 + 8 = 20.
Step 2: Divide by n
There are 4 observations, so 20 / 4 = 5.
Why this works
The arithmetic mean is the sum divided by the count. For a symmetric list like this, mean and median agree. Median would still be 5 here because the two central values after sorting are 4 and 6.
Try this problem in the solver
Solve a problem
No account required. Type, upload, or snap a photo.
Example problems
Related calculators
Related guides
Related formulas
Related solutions
Solve 2x + 5 = 17
Undo addition first, then divide by the coefficient of x. Substituting x = 6 recovers the original right-hand side.
Solve 3x − 7 = 14
A two-step linear equation: move the constant, then divide. The check is 3(7) − 7 = 14.
Solve x² − 5x + 6 = 0
Standard form is already ax² + bx + c = 0. The discriminant is 1, so there are two real roots: 2 and 3.
Frequently asked questions
Is this a sample mean or a population mean?
The arithmetic is the same when every listed value is used. Notation (x̄ vs μ) depends on whether the list is treated as a sample or a full population.