Conditional Probability Day

Question

Using the tree diagram that you drew for problem #12. What's the probability that the team loses? As with winning, there are 2 ways to lose, with or without snow. Write your answer as a percent, rounding to the tenths place, if necessary. (Hint: Rounding is NOT necessary. Skip the decimal part.) Remember to include a % sign at the end

Problem 12:

                             0.5                                           0.5

                      snow                                                    no snow

 0.4                                        0.6                   0.7                                  0.3

win                                          lose          win                                            lose

Answer 1

If I understand your problem correctly the probability you want is

(1/2)(6/10) + (1/2)(3/10) = 9/20 = .45