A summary measure calculated for a population is called a parameter and is designated by Greek letters (such as 
for mean or 
for proportion).
Definitions:
Response Variable
The outcome variable on which comparisons are made, often dependent on the predictor or independent variables in a study.
Fuel Economy
A measure of how far a vehicle can travel on a given amount of fuel, often expressed in miles per gallon or liters per 100 kilometers.
Categorical Variable
A variable that can take on values that are names or labels, representing discrete categories or groups.
Scatterplot
A type of graph used in statistics to display values for typically two variables for a set of data, allowing for the observation of relationships.
Q17: When sampling without replacement, which of the
Q61: In estimating the difference between two population
Q80: Suppose in testing a hypothesis about a
Q125: Which of the following is another name
Q157: According to the Central Limit Theorem, any
Q166: It is of interest to know if
Q170: The sample standard deviation measures the variability
Q187: Given that z is a standard normal
Q230: As the sample size increases, the standard
Q233: Refer to High School Graduates IQ's paragraph.