A sample of 38 customers was taken at a computer store. Each customer was asked the price of the computer they bought. Here is a summary.

\begin{tabular}{|c|c|}
\hline
Number of computers & \begin{tabular}{c}
Price paid for each \\
(in dollars)
\end{tabular} \\
\hline
6 & 900 \\
\hline
18 & 1050 \\
\hline
14 & 2600 \\
\hline
\end{tabular}

Find the mean price for this sample. Round your answer to the nearest dollar.



Answer :

To find the mean price for the sample of computers, you need to follow these steps:

1. Multiply the price paid for each computer by the number of computers bought at that price to find the total cost for each price segment:

- For the 6 computers bought at [tex]$900 each: \[ 6 \times 900 = 5400 \] - For the 18 computers bought at $[/tex]1050 each:
[tex]\[ 18 \times 1050 = 18900 \][/tex]

- For the 14 computers bought at [tex]$2600 each: \[ 14 \times 2600 = 36400 \] 2. Sum the total costs from each price segment to find the total cost for all computers: \[ 5400 + 18900 + 36400 = 60700 \] 3. Sum the total number of computers: \[ 6 + 18 + 14 = 38 \] 4. Divide the total cost by the total number of computers to find the mean price: \[ \text{Mean price} = \frac{60700}{38} \approx 1597.368 \] 5. Round the mean price to the nearest dollar: \[ \text{Mean price} \approx 1597 \] Thus, the mean price of the computers in the sample, rounded to the nearest dollar, is $[/tex]1597.