I got stuck but if someone could help me with this question it’d be greatly appreciated!

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false