Probability

Handed in the full Mental Math Sheets (Cross out lowest two)
We corrected Mr. Maxx’s mistake he made yesterday (the chance he used plane on all three legs of his journey). My answer was wrong, I knew once the fractions were up. The answer Mr Maxx got yesterday was 47/48; my answer was 31/48. The correct answer was 3/8. Maxx made a Tree diagram in Excel and saved it under the probability.
From the handout we were assigned questions to try. They are: #’s 9, 10, 22, and 27.