McDonald's produces and makes available to customers a document entitled "A Full Serving of Nutrition Facts" that contains ingredient lists of all the items they sell, along with nutrition facts. The information below comes from the fact sheet last revised in August 2005. Arandom sample of 8 breakfast items is randomly selected from the list of all breakfast items. The 8 selected breakfast items, and their number of calories, are as follows. Sausage McMuffin 420. Hotcakes (plain) 340 Scrambled Eggs 280 Hash Browns 190 Deluxe Warm Cinnamon Roll 790 Bacon, Egg & Cheese Biscuit 440 Sausage McGriddles Deluxe Breakfast 420 1220 Consider the information given. Which of the following is the mean number of calories in the sample? Please choose from options below. 420 335.46 5125 313.80 529.22