1-> The weight of an organ in adult males has a bell-shaped distribution with a mean of 330 grams and a standard deviation of 30 grams. Use the empirical rule to determine the following (a) About 99.7% of organs will be between what weights? O (b) What percentage of organs weighs between 270 grams and 390 grams? (c) What percentage of organs weighs less than 270 grams or more than 390 grams? (d) What percentage of organs weighs between 300 grams and 420 grams? (a) and grams (Use ascending order) (0)% (Type an integer or a decimal) (c)% (Type an integer or a (d)% (Type an integer or decimal rounded to two decimal places as needed.) decimal) KIIN