Use the sample data and confidence level given below to complete parts (a) through (d).
A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n = 1021 and x = 509 who
said "yes." Use a 90% confidence level.
Click the icon to view a table of z scores.

a) Find the best point estimate of the population proportion p.
(Round to three decimal places as needed.)