An urn contains five balls, one marked win and four marked lose. you and another player take turns selecting a ball at random from the urn, one at a time. the first person to select the win ball is the winner. if you draw first, find the probability that you will win if the sampling is done (enter your answer in fractions, e. g 1/2)

what are you trying to solve here

step-by-step explanation:

the answer is 8/21

hope this

alright so i think for this one it would to draw it out. this may be hard for me to try and draw, but i will do my best on here:

        r

  /       |     \

notice how it forms 2 triangles inside one bigger triangle.

so if we know the angle spr is the same as psr that is saying the measure of angle p is the same as angle s. this means the big triangle psr is either isosceles or equilateral. in both cases, the triangle is perfectly symmetrical when split down the middle, which is in this case rq. because we know it is perfectly symmetrical on both sides, we know that the two triangles inside the bigger one are equal.