Dee answered 12/5/2009 The Average Customers At A Certain Grocery Store Spend Yearly $636.55. Assume The Variable Is Normally Distributed. If The Standard Deviation Is $89.46 Find The Probability That A Randomly Selected Customer Spends Between $550.67 And $836.94? Trust me I had this class and the correct answer is 0.820 = 82.0%
