Which of the following is a biased event? A) The probability of getting heads when flipping a coin.
B) The probability of rolling a 5 on a single die.
C) The probability of pulling a red marble from a bag with 10 red marbles, 18 blue marbles and 6 green marbles.
D) The probability of drawing an ace from a standard deck of cards

i can't see the picture : /

so then what are you asking?

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