The formal selection of the president of the United States is in the hands of the
A) Supreme Court.
B) electors in the Electoral College.
C) House of Representatives.
D) people.
E) Senate.
B
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The United States currently imports more than it exports, in dollars
Indicate whether the statement is true or false
The United States gave approximately how much in official development assistance, also known as foreign aid, in 2014?
a. $27 billion b. $30 billion c. $33 billion d. $41 billion
Attainment is a key indicator for gauging education health and it is measured by all of the following except:
a. the net enrollment ratio b. the mean years that a person spends in school c. the ratio between the number of students per teacher d. adult literacy rates
Answer the following statement(s) true (T) or false (F)
1. A normal distribution (Appendix A) is an example of a probability distribution.
2. The standard deviation of a probability distribution is also called a standard error.
3. The formula for calculating a confidence interval for samples larger than 30 is .
4. When the sample size is smaller than 30, the normal distribution is replaced by the t distribution for calculating confidence interval.
5. Confidence intervals are also calculated for proportions (e.g., polling data).