A bag of pofmäs contains 2/3 white granules and 1/3 yellow granules. Only 1/2 of the white grain will pop, while 2/3 of the yellow grain will pop. A grain of wheat is randomly selected from that bag; this grain pops when placed in the puffing machine. Determine the probability that the grain was drawn white.

Question

A bag of pofmäs contains 2/3 white granules and 1/3 yellow granules.  Only 1/2 of the white grain will pop, while 2/3 of the yellow grain will pop.  A grain of wheat is randomly selected from that bag;  this grain pops when placed in the puffing machine.  Determine the probability that the grain was drawn white.

oobleck · Answer

P(white,pop) = 2/3 * 1/2 = 1/3 P(yellow,pop) = 1/3 * 2/3 = 2/9 P(pop) = 1/3 + 2/9 = 5/9 so, what do you think?

Anonymous · Answer

I think it's right. thank you