Weights of the vegetables in a field are normally distributed. from a sample carl cornfield determines the mean weight of a box of vegetables to be 172 oz. with a standard deviation of 8 oz. he wonders what percent of the vegetable boxes he has grouped for sale will have a weight less than 164 oz. _ carl calculates the z-score corresponding to the weight 164 oz. _ using the table (column .00), carl sees the area associated with this z-score is 0. carl rounds this value to the nearest hundredth or 0. _ now, carl subtracts 0.50 - 0.34 = 0._ or _%