The weight of an organ in adult males has a​ bell-shaped distribution with a mean of 330 grams and a standard deviation of 25 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 305 grams and 355 ​grams? ​(c) What percentage of organs weighs less than 305 grams or more than 355 ​grams? ​(d) What percentage of organs weighs between 305 grams and 380 ​grams?

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