The mean price of ground beef in 75 cities in the midwest is 2.11 and teh standard deviation is .56. a midwest grocer is selling ground beef for 3.25. What is the price in standard units? Assuming the empiracle rule applies would the price be unusual or not? Round to the nearest Hundreth
a. z=2.04; This price would not be unusual
b.2.04; This is unusually expensive ground beef
c. z=-2.04; This price would not be unusual
d. z=-2.04; This is unusually inexpensive ground beef.