BULLS' EYE- Students A, B & C 5

[SidYuca]

This happened in a class. What would you, as a good understanding teacher say to each student, A, B, and C?


Consider two concentric circles with center at O, where the radius of the smaller circle (interior is Black) = 1 and the first drawn larger circle with white interior having radius = 2.

What is the probability that if a point, P, is selected in the larger circle that it is also in the smaller one?

ANSWERS
Student A: "1/4 considering the areas my answer appears correct."

Student B: "1/3 Considering areas my answer appears correct."

Student C: "1/2 Consider drawing the radius OB of the larger circle which passes through point P and intersects the smaller circle at A. Since OA = AB and P is on one of them, my answer appears correct."

 

[BobRodes]

Interesting thread. I'm reminded of the difference between white and pink noise...

An unforeseen consequence of the information revolution has been the exponential propagation of human error.

 

[assets]

Head-Tails Odd-Evans If I toss a coin ONCE it 1:1.

So if (P) was a dart and you toss it Once it will be in ether to black or white area. So if we limit the dart to a line from centre (0) to A-B then it will be 1:1 it will land in either black or white so "B" is correct for a line

Never give up never give in.

There are no short cuts to anything worth doing