Answer:
0.249 is the required proportion.
Explanation:
We are given the following in the question:
Sample size, n = 822
Number of people who preferred foreign cars over domestic, x = 205
We have to find the proportion of new car buyers who prefer foreign cars.
Formula:
![\hat{p} = (x)/(n)](https://img.qammunity.org/2021/formulas/mathematics/college/8bx7r6zdfzizkuxa8is34bv8acnfdizb9d.png)
Putting values, we get,
![\hat{p} = (205)/(822)\\\\\hat{p} = 0.249](https://img.qammunity.org/2021/formulas/mathematics/college/ahg8zs2vqmdxootex2vgwf9249zuqxoe77.png)
Thus, 0.249 is the proportion of the new car buyers who preferred foreign over domestic cars..