One of the questions on a survey asked adults a series of questions on attitudes toward automation. The results showed that 2,978 out of 4,144 respondents are worried about a future in which robots and computers can do many human jobs; 2,774 are worried about the development of algorithms that can evaluate and hire job candidates; and 2,231 are worried about the development of driverless vehicles. Develop a point estimate of the proportion of respondents who are worried about the development of algorithms that can evaluate and hire job candidates.