For the following set of numbers, what is the mean (mean = ΣX/N)?
9 - 2 - 8 - 1 - 5
A)5
B)25
C)8
D)23

Question

Quizplus · Accepted Answer

The mean is calculated by adding all the numbers together and then dividing by the number of numbers. So, (9 + (-2) + 8 + 1 + 5) / 5 = 21 / 5 = 4.2. However, there seems to be a mistake in my initial calculation as none of the options match. Recalculating correctly: (9 - 2 + 8 - 1 + 5) / 5 = 19 / 5 = 3.8. It appears there was a misunderstanding in the calculation or the options provided. Correcting for the intended process: The sum is 21, and there are 5 numbers, so the mean is indeed 21 / 5 = 4.2, which is not listed in the options. Given the options, the closest correct approach to calculate the mean correctly would be to sum the numbers correctly and divide by the count, but it seems there's a mistake in my response as none of the provided options match the correct calculation of the mean. The correct calculation should be: (9 + (-2) + 8 + 1 + 5) / 5 = 21 / 5 = 4.2, indicating a mistake in the provided options or a misunderstanding in the question's intent.

For the Following Set of Numbers, What Is the Mean