The weights of broilers are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. What is the probability that a randomly selected broiler weighs more than 1445 grams? 15.87% 17.17% O 8.54% O 35.93% Question 20 2 pts The population of Douglas fir trees was shown to have an approximately normal diameter distribution with u=50 centimeters and o=12 centimeters. Find the diameter d such that 30.5% of the Douglas fir trees in the population have diameters that exceed d. O 50.12 56.12 O 54.56 50.60