Question

problems

1. a sample of $n = 9$ scores has $sum x=108$. what is the sample mean?
2. res has $sum x = 72$. what is the

Explanation:

Step1: Recall mean formula

The formula for the sample mean $\bar{X}$ is $\bar{X}=\frac{\sum X}{n}$.

Step2: Substitute values

Given $n = 9$ and $\sum X=108$, we substitute into the formula: $\bar{X}=\frac{108}{9}$.

Step3: Calculate result

$\frac{108}{9}=12$.

Answer:

12