Write out the conclusion that follows in a single step from the given premises ( read u as horseshoe): 1.(s u ∼f) • (∼f u b)2.s v ∼f3.∼fwrite out the conclusion that follows in a single step from the given premises ( read u as horseshoe): 1. ~m u s2. ~m3. (m v h) v ~s

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