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.

Step-by-step explanation:

The missing parameters are:

--- sample size

--- those worried about robots and computers doing human jobs

Required

The point estimate

To do this, we simply divide the number of worried people by the sample size

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.

i would say c is the best answer, hope it's right!

good luck! =)

cutie~