The use of body counts in Vietnam to gauge military effectiveness is an example of

Which of the following leadership abilities is central to presidential success?

a. the ability to enter into executive agreements b. the ability to write legislation c. the ability to persuade members of Congress and the American public d. the ability to negotiate treaties

For a given variable, a (n) ________________________________________ for a specific case tells us how many standard deviations above or below the mean that case is for that variable

Fill in the blank(s) with the appropriate word(s).