The weight of an organ in adult males has a bell-shaped distribution with a mean of 325 grams and a standard deviation of 25 gr
ams. Use the empirical rule to determine the following. (a) About 68% of organs will be between what weights? (b) What percentage of organs weighs between 275 grams and 375 grams? (c) What percentage of organs weighs less than 275 grams or more than 375 grams? (d) What percentage of organs weighs between 300 grams and 400 grams?