xandra goes mushroom picking this Spring. However, she doesn't know the difference between an edible mushroom and a poisonous mushroom. It is estimated that the proportion of poisonous mushrooms in the woods is 0.7. (1) xandra collects 6 mushrooms at random. What is the probability that she picks at most 4 poisonous mushrooms? (b) xandra invites simon to a gathering. simon is a botanist. Out of 10 mushrooms he picks, 9 are edible. On this day, he picks 4 mushrooms and Amedee picks 3. What is the probability that all the mushrooms are edible?