he weight of an organ in adult males has a​ bell-shaped distribution with a mean of 310 grams and a standard deviation of 35 grams. Use the empirical rule to determine the following. ​(a) About 99.7​% of organs will be between what​ weights? ​(b) What percentage of organs weighs between 240 grams and 380 ​grams? ​(c) What percentage of organs weighs less than 240 grams or more than 380 ​grams? ​(d) What percentage of organs weighs between 240 grams and 415 ​grams?