To estimate mean using a sample. Terrance will need to randomly select students he will survey so that the sample represents the population well
The 3 lbs of candy is irrelevant, so we can discard that. All you need to do is divide 147 by 26, which is 5.65 pieces of candy. Each student will get 5 pieces, with a few left over.
20% of 250 people are french.
0.2 * 250 = 50 people. Hope this helps!