To estimate the number of customers who bought racing games out of 345 total customers, you can set up a proportion based on the survey results.
From the survey:
- Number of customers surveyed = 80
- Number of customers who bought racing games in the survey = 3
First, you can calculate the proportion of customers who bought racing games in the survey:
\[ \text{Proportion} = \frac{3}{80} \]
Next, apply this proportion to the total number of customers (345):
\[ \text{Estimated number of customers who bought racing games} = \text{Proportion} \times \text{Total customers} = \frac{3}{80} \times 345 \]
Now, let's calculate it:
\[ \frac{3 \times 345}{80} = \frac{1035}{80} \approx 12.9375 \]
Rounding to the nearest whole number gives:
\[ \approx 13 \]
Therefore, approximately 13 customers bought racing games.