A garden centre is selling a box containing 40 daffodil bulbs and 60 narcissi bulbs. The likelihood of a daffodil bulb flowering is 0.8 and 90% of the narcissi bulbs are expected to flower.
Draw a tree diagram to demonstrate these events and calculate the
probabilities of all possible outcomes of these two events. Check your
answers by summing the probabilities generated to ensure the result is 1.
What is the probability that a randomly chosen bulb does not flower?
What is the probability that a randomly chosen bulb is a narcissi given that the bulb does not flower?
