What is the arithmetic mean of the numbers -3, -2, -1, 0, 1, 2, 3?
A. -1
B. 0
C. 1
D. 2
Correct Answer: B. (-3 + -2 + -1 + 0 + 1 + 2 + 3) / 7 = 0
Explanation:
The arithmetic mean is calculated by adding all the numbers together and dividing by the number of numbers in the set.
In this case, (-3 + -2 + -1 + 0 + 1 + 2 + 3) / 7 = 0,
so the arithmetic mean is 0.
What is Arithmetic Mean?
The arithmetic mean, also known as the “average,” is a measure of central tendency calculated by adding a set of numbers together and dividing by the number of numbers in the set. It is represented by the symbol “x̄” or “M” and is commonly used to summarize and describe a set of numerical data. It is considered to be a good measure of central tendency when the data is continuous and symmetric.