A baker estimates that on an average day, she uses a mean of 312 lbs of flour. The standard deviation is 54 lbs. Draw the distribution to demonstrate the problem. Also insert values from part b) showing the region of interest. What is the probability that a particular day will require more than 250 lbs but less than 350 lbs of flour? Determine the probability of the baker using exactly 312 lbs of flour. (Hint: What is the formal expression of a normal distribution?) How much flour should the baker keep in the bakery to be 98 % sure she has enough flour for each day