Robert has a coin and a spinner with 3 equal sections, one colored pink, one colored purple, and one colored orange. Which tree diagram best represents all possible outcomes if Jacob
spins the spinner once and flips the coin once?

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15