8 On average, half the plants of a particular variety produce red flowers and the rest produce blue flowers.
- Ann chooses 8 plants of this variety at random. Find the probability that more than 6 plants produce red flowers.
- Karim chooses 22 plants of this variety at random.
(a) Find the probability that the number of these plants that produce blue flowers is equal to the number that produce red flowers.
(b) Hence find the probability that the number of these plants that produce blue flowers is greater than the number that produce red flowers.