What percentage of the stars surveyed show evidence of planets?
(a) About 50%
(b) About 30%
(c) Less than 5%
(d) Less than 1%
I posted this earlier but there was not no response. I think the answer should be 40% but there is no option for that.
1 answer
It should be 40 percent. Look in your book, it is probably before the stargazer Kepler which has been mapping the sky.