The amount of soda a dispensing machine pours into a 12 ounce can of soda follows a normal distribution with a mean of 12.06 ounces and a standard deviation of 0.04 ounce. the company receives complaints from consumers who actually measure the amount of soda in the bottles and claim that there was less than the advertised 12 ounces of soda. what proportion of the soda cans contain less than the advertised 12 ounces of soda?