Question

Weighted mean A sample of 29 customers was taken at a computer store. Each customer was asked the price of the computer she bought. Here is a summary. Number of computers Price paid for each (in dollars) $ 14 Explanation 12 3 Find the mean price for this sample. Round your answer to the nearest dollar. Check 900 X 800 1000 ? 15

Answer 1

Given -

To Find -

Mean Price of the sample =?

Step-by-Step Explanation -

$Mean\text{ Price of Sample = }\frac{Sum\text{ of \lparen}Number\text{ of Computers}\times Price\text{ Paid for each\rparen }}{Sum\text{ of Number of Computers}}$

So, Simply Putting the values in the above formula, we get:

$\begin{gathered} Mean\text{ Price of Sample = }\frac{14\times900\text{ + 12}\times800\text{ + 3}\times1000}{14+12+3} \\ \\ Mean\text{ Price of Sample = }\frac{12600\text{ + 9600 + 3000}}{29} \\ \\ Mean\text{ Price of Sample = }\frac{25200}{29} \\ \\ Mean\text{ Price of Sample = 868.96 }\approx\text{ 869} \end{gathered}$

Final Answer -

Mean Price of the sample = $869