For each sample, find the sample proportion. Write it as a percent.
I'm not well-versed on this, either, GM.....but I believe the Sample Proportion for 1(a) is just
837 / 1150 ≈ . 7278 = 72.8%
You should be able to do the other two, based on this....
Alright, then I will try even though this doesn't make sense to me. Thanks for the help!
--7H3_5H4D0W