One of the questions on a survey asked adults a series of questions on attitudes toward automation. the results showed that 2,973 out of 4,135 respondents are worried about a future in which robots and computers can do many human jobs; 2,774are worried about the development of algorithms that can evaluate and hire job candidates; and 2,236 are 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.