The actual weights of bags of pet food are normally distributed about the mean of 50.0 lb with a standard deviation of 0.2 lb. 1. About what percentage of bags of pet food weigh between 49.8 lb and 50.2 lb?

2. About what percentage of bags weigh less than 49.8 lb?

3. In a group of 250 bags, what percentage of bags would you expect to weigh more than 50.4? ​