(d) For the standard normal model, what zscore is the 75th percentile? The price of a particular make of a 64GB iPad Mini among dealers nationwide is assumed to follow a Normal model with mean ,u, = $500 and standard deviation 0 = 15. Use this description for the following: (e) Draw a sketch of what our normal mode] looks like here for the iPad mini prices (f) What proportion of iPad Minis of the same specs, chosen randomly from a dealer, will cost less than $490