In a certain county, the sizes of family farms approximatelyfollow mound-shaped (normal) distribution with a mean of 472 acresand a standard deviation of 27 acres.
(a) According to the empirical rule, approximately __% of familyfarms have a size between 418 and 526 acres.
(b) According to the empirical rule, approximately __% of familyfarms have a size between 391 and 553 acres.
(c) According to the empirical rule, approximately __% of familyfarms have a size between 445 and 499 acres.
