1. The amount of pyridoxine (in grams) in a multiple vitamin is normally distributed with mean = 110 grams and standard deviation = 25 grams. What is the probability that a randomly selected vitamin will contain between 100 and 120 grams of pyridoxine?
2. The number of 911 calls in Butte, Montana has a Poisson distribution with a mean of 12.555 calls a day. The probability of seven 911 calls in a day is ____________