Cereal A companys single-serving cereal boxes advertise 9.63 ounces of cereal. In fact, the amount of cereal X in a randomly selected box follows a Normal distribution with a mean of 9.70 ounces and a standard deviation of 0.03 ounces. (a) Let Y = the excess amount of cereal beyond whats advertised in a randomly selected box, measured in grams (1 ounce = 28.35 grams). Find the mean and standard deviation of Y. (b) Find the probability of getting at least 3 grams more cereal than advertised. Show your work.

The toll to a bridge is $3.A three-month pass costs $10 and reduces the toll to $0.50.A six-month pass costs $40 and permits crossing the bridge for no additional fee.How many crossings per three-month period does it take for the three- month pass to be the best deal