The weight of an organ in adult males has a bell-shaped distribution with a mean of 320 grams and a standard deviation of 25 grams. Use the empirical rule to determine the following. (a) About 95% of organs will be between what weights? b) What percentage of organs weighs between 295 grams and 345 grams? (c) What percentage of organs weighs less than 295 grams or more than 345 grams? (d) What percentage of organs weighs between 245 grams and 370 grams? (a) and grams (Use ascending order.)