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# The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages markedquot; largequot; and shrimp that weigh less than 0.

The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages marked" large"

and shrimp that weigh less than 0.47 ounces each into packages marked "small"; the remainder are

packed in "medium" size packages. If a day's catch showed that 19.77 percent of the shrimp were large

and 6.06 percent were small, determine the mean and the standard deviation for the shrimp weights.

Assume that the shrimps' weights are normally distributed.