One of the questions on a survey asked adults a series of questions on attitudes toward automation. The results showed that2,975out of4,135 respondentsare worried about a future in which robots and computers can do many human jobs;2,778are worried about the development of algorithms that can evaluate and hire job candidates; and2,231are worried about the development of driverless vehicles. (Round your answers to four decimal places.)

(a)

Develop a point estimate of the proportion of respondents who are worried about a future in which robots and computer can do many human jobs.

(b)

Develop a point estimate of the proportion of respondents who are worried that the development of algorithms that can evaluate and hire job candidates.

(c)

Develop a point estimate of the proportion of respondents who are worried about the development of driverless vehicles.