1. Principal, Joo Siloocy, is planning a school fieldtrip for all 450 students. As usual, she is planning to bring snacks. Over time she has established that only 70% of kids will take the snack that they are offered. The rest will refuse because of food allergies, dietary restriction, or simplify having a horrible attitude. In particular she wants know, if she packs 340, what are the chance that will be short? a. Define the random variable and give the range of possible values. b. Is the use of normal approximation appropriate? Justify your answer. C. What are values of u & o? d. CCF? e. Z interval. f. Final