# Given a set # {13, x ,-1, 11} #, for what x would the mean of the set be 3?

By signing up, you agree to our Terms of Service and Privacy Policy

To find the mean of a set, you sum all the numbers in the set and then divide by the total number of elements in the set.

For the given set {13, x, -1, 11}, the mean is 3 when:

(13 + x + (-1) + 11) / 4 = 3

Solving for x:

(13 + x - 1 + 11) / 4 = 3 (23 + x) / 4 = 3 23 + x = 3 * 4 23 + x = 12 x = 12 - 23 x = -11

Therefore, for x = -11, the mean of the set {13, x, -1, 11} would be 3.

By signing up, you agree to our Terms of Service and Privacy Policy

- If the mode of the following data 4,3,2,5,P,4,5,1,7,3,2,1 is 4 then the value of p is?
- We say that the median is a resistant measure, whereas the mean is not a resistant measure. What's a resistant measure?
- What is the mean, median, and mode of 86, 90, 93, 85, 79, 92?
- Is "degree" a discrete or continuous variable?
- How does American obesity compare to obesity worldwide?

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7