Q: What's the arithmetic mean of 1, 1, 1, 3, 7, 7, 8?
UNANSWERED.
The correct answer is C.
A: 4 is the right answer. Arithmetic mean is the average of the numbers. Add up all the numbers 1+1+1+3+7+7+8 = 28. Then divide by how many numbers there are. 28 / 7 = 4
