The length of sweetpea flower stems are normally distributed with mean 18.2 cm and standard deviation 2.3 cm. (a) Find the probability that the length of a flower stem is between 16 cm and 20 cm. Answ

The length of sweetpea flower stems are normally distributed with mean 18.2 cm and standard deviation 2.3 cm. (a) Find the probability that the length of a flower stem is between 16 cm and 20 cm. Answer: 0.6139 *I found it and, it's correct*. (b) 12% of the flower stems are longer than h cm. 20% of the flower stems are shorter than k cm. Find h and k.