Preparing for Your Test. For cholesterol and glucose tests, you must fast for at least 8 hours prior to having your blood drawn, unless your doctor tells you otherwise. Fasting means no eating or drinking for at least 8 hours before the test, except water. After your blood is drawn, you may resume your regular diet.
role expectation (social role expectation) (noun) The way a role ought to be performed as determined by a group or society. Example: A university student is expected to complete assignments on time and come to class prepared. The terms role expectation and social role expectation are used interchangeably in a sociological context. In contrast to role expectation, role performance is the actual behavior and expression of an individual occupying a role.
In statistics and probability analysis, expected value is calculated by multiplying each of the possible outcomes by the likelihood that each outcome will occur, and summing all of those values. By calculating expected values, investors can choose the scenario that is most likely to give them their desired outcome.