Final answer:
The point estimate of the proportion of people who wear hearing aids, with 46 out of 898 people wearing them, is calculated as 46 divided by 898, which gives us 0.051. Hence, the correct answer is A. 0.051.
Step-by-step explanation:
To find the point estimate of the proportion of people who wear hearing aids, we use the formula for a proportion, which is the number of people with the attribute divided by the total number of people surveyed.
In this case, 46 out of 898 people wear hearing aids. So, the point estimate (p') is calculated as follows:
p' = number of people with hearing aids / total number of people surveyed
p' = 46 / 898
p' = 0.051
Therefore, the correct answer is A. 0.051.