Answer:
0.75
Explanation:
We have been given that 400 people were asked whether gun laws should be more stringent. 300 hundred said "yes," and 100 said "no".
To find the point estimate of the proportion in the population who will respond "yes", we need to divide number of people who said yes by total number of people that is 300 by 400.
![\text{People who will respond yes}=(300)/(400)](https://img.qammunity.org/2020/formulas/mathematics/college/t50y0w7hayyhembl6r62g95u1ezw0lkh3e.png)
![\text{People who will respond yes}=(3)/(4)](https://img.qammunity.org/2020/formulas/mathematics/college/h0jeut7ejsa7han64wqb90wwrk44lb1umh.png)
![\text{People who will respond yes}=0.75](https://img.qammunity.org/2020/formulas/mathematics/college/9yq4yhg47mcqo6919e9u5hvz6ku1q9ck1q.png)
Therefore, the point estimate of the proportion in the population who will respond "yes" is 0.75.