Base your answer to the question on the diagram shown below.

Fernando is going to draw a marble from the bag, replace it, and then draw another marble. What is the probability that Fernando will get a green or blue marble on the first draw and a pink on the second draw?

Question

Base your answer to the question on the diagram shown below.

Fernando is going to draw a marble from the bag, replace it, and then draw another marble. What is the probability that Fernando will get a green or blue marble on the first draw and a pink on the second draw?

anonymous · Answer

attachment

anonymous · Answer

(3 green, 4 yellow, 5 blue, 8 pink)

anonymous · Answer

hmm.. 4/25?

ganpat · Answer

in total there are 3+4+5+8 = 20 marbles..

so for 1st draw it needs to be green or blue.. where green = 3 & blue  = 5
(3/20 ) + (5/20) = 8/20 = 2/5..

he replaces that, so again u have 20 marbles.. and now for second draw it should be pink.. so u have 8 pink marbles..
so = 8/20 = 2/5... the same..

anonymous · Answer

i think 2/5 is not the answer..

ganpat · Answer

oh.. so together 1st and 2nd attempt u will get = (2/5) * (2/5) = 4/25...

u r right again.. u r good.. :)