Question

the mean of 11, 5, 2 is

Explanation:

Step1: Recall mean formula

The mean $\bar{x}$ of a set of numbers $x_1,x_2,\cdots,x_n$ is $\bar{x}=\frac{\sum_{i = 1}^{n}x_i}{n}$. Here $n = 3$, $x_1=11$, $x_2 = 5$, $x_3=2$.

Step2: Calculate sum of numbers

$\sum_{i=1}^{3}x_i=11 + 5+2=18$.

Step3: Calculate the mean

$\bar{x}=\frac{18}{3}=6$.

Answer:

6