Question

This worksheet is a mess, and none of these tree graphs make any sense to me, how am I supposed to find probability from these? (atchmnt)

Answer 1

Need see it

Answer 2

Well for starters, i'd like to know if i did the first one right?

Answer 3

Looks like the first one was overly complicated... there should be a simpler way... I'm thinking about it.

Answer 4

But I believe your calculation for the probability is correct.

Answer 5

First question I think should be this.

Answer 6

Does that help @Phonecian for that one?

Answer 7

Tree graphs simply list the probability of getting to each new step. To find the total probabilities you multiply along the branches for each outcome you want. So, in this case we multiply along the top branch and get (0.6)*(0.5). The second to last lower branch gives (0.4)*(0.3). Add them together for the total probability, which is what you did on your own (0.6)*(0.5) + (0.4)*(0.3) = 0.42

Answer 8

ok, alright then, oh sweeto i got half of it at least
How about the second one, i've got this and that's it

Answer 9

Is that still a 50/50 shot?

Answer 10

Yeah, that will be the answer, here's my diagram as a comparison.