A sample of n = 5 scores has a mean of M = 12. What is Σ X for this sample?Group of answer choices52=255/12 = 0.4175(12) = 6012/5 = 2.40
Question
A sample of n = 5 scores has a mean of M = 12. What is Σ X for this sample?Group of answer choices52=255/12 = 0.4175(12) = 6012/5 = 2.40
Solution
To find Σ X for the sample, we use the formula for the mean:
M = (Σ X) / n
Given: M = 12 n = 5
We need to solve for Σ X:
12 = (Σ X) / 5
Multiply both sides by 5:
Σ X = 12 * 5 Σ X = 60
Therefore, the correct answer is:
5(12) = 60
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