The weight of an organ in adult males has a? bell-shaped distribution with a mean of 310 grams and a standard deviation of 40 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 190 and 430 ?grams?
?(c) What percentage of organs weighs less than 190 grams or more than 430 ?grams?
?(d) What percentage of organs weighs between 190 grams and 350 grams?