Which of the following is a good example of a representative sample?

to get an idea about american views on immigration, you poll random individuals at the republican national convention.

an anonymous survey is provided to all sophomores to learn more about cheating amongst high school students.

you use a computer program to randomly dial numbers in the phone book to respond to your poll about phone services.

you request that a local baptist church distribute your survey investigating american family values.

Match the item to the definition: indirect correlation, correlational research, correlational research, covary, pearson correlation coefficient, pearson correlation coefficient, direct correlation a. used to describe the relationship between two or more naturally occurring variables b. determines whether scores on the two variables covary c. whether two variables vary or change together d. denoted by the symbol "r" e. provides information about the sign (direction) and magnitude(strength) of the linear relationship. f. when the correlation is positiveg. when the correlation is negative