Question

find the mean for the following list of numbers.
30,000 23,500 33,120 29,210 24,400 27,550 27,100 32,480

the mean is
(type an integer or a decimal.)

Explanation:

Step1: Sum the numbers

$$30000 + 23500+33120 + 29210+24400+27550+27100+32480$$
$$=(30000+23500)+(33120 + 29210)+(24400+27550)+(27100+32480)$$
$$=53500+62330+51950+59580$$
$$=(53500+62330)+(51950+59580)$$
$$=115830+111530$$
$$=227360$$

Step2: Count the numbers

There are \(n = 8\) numbers.

Step3: Calculate the mean

The formula for the mean \(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\). Substitute \(\sum_{i=1}^{n}x_{i}=227360\) and \(n = 8\) into the formula: \(\bar{x}=\frac{227360}{8}=28420\)

Answer:

\(28420\)