Question 2. The number of patrons attending the local sports bar each evening during footballs season follows the normal distribution. The mean number of patrons per evening is 240 and the standard deviation is 35.
a) What percent of the evenings will have between 185 and 240 patrons?
b) What percent of the evening will have 285 patrons or more?
c) What percent of the evenings will have 135 or fewer patrons?
d) How many patrons are expected on the evenings with the fewest 25 percent of passengers?
This solution gives the step by step method for computing probabilities based on Z score.