Question

a small business owner pays his three employees the monthly salaries $4,000, $3,500, and $4,500. what is the mean salary of the employees? $4,200 $4,000 $3,325 $875

Explanation:

Step1: Recall mean formula

The formula for the mean $\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}$, where $x_{i}$ are the data - points and $n$ is the number of data - points. Here, $n = 3$, $x_1=4000$, $x_2 = 3500$, $x_3=4500$.

Step2: Calculate the sum of salaries

$\sum_{i = 1}^{3}x_{i}=4000 + 3500+4500=12000$.

Step3: Calculate the mean

$\bar{x}=\frac{12000}{3}=4000$.

Answer:

$4000$