Which pair of variables should produce a correlation near zero? ...

[nmorano1]

Which pair of variables should produce a correlation near zero?
 
  a. model year (2003, 2004, etc.) and price for a used Honda
 b. driving distance from college and weekly cost of gas for commuters
  c. number of hours studying and number of errors on a math exam
  d. IQ and weight for a group of third-grade students

Question 2

A regression-discontinuity design is particularly attractive when ____.
 
  a. the researcher is evaluating a program that has already begun
  b. the unit of study is a community rather than an individual
 c. it is important that those who most need the treatment receive it
  d. there are concerns about selection-maturation effects

[Zack0mack0101@yahoo.com]

Answer to Question 1

d

Answer to Question 2

c

[nmorano1]

Thanks for the timely response, appreciate it

[sarah_brady415]

Gracias!