Problem 5.5. The growth of a tomato seedling in a month is a normal random variable X with the mean of 2 cm and the standard deviation of 0.7 cm. (a) What is the probability that a seedling does not germinate (i.e. X 0)?

b) In a greenhouse, tomato seedlings are arranged in trays of 25 small compartments each, with one seedling planted in each compartment. Such a tray is randomly selected. What is the probability that in this tray, all compartments contain seedlings which did germinate?

Part b please, and thankyou.