A seventh-grade student chooses a random sample of 50 out of
400 students. He finds that 7 students have traveled outside the United
States. The student claims that over 50 of the 400 students have likely
traveled outside the United States. Is the student correct? Explain.

please help with this problem, this is worth a lot of points!

umm im not really sure because i never had to do this

step-by-step explanation:

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen

depends what are you allowed to do ?