Random sampling occurs when a. the sample is selected from a ...

[mia]

Random sampling occurs when
 
  a. the sample is selected from a single population
  b. a random choice determines the first subject to be selected
  c. the sample is selected from an infinite population
  d. all members of the population have an equal chance of being selected

Question 2

When numbers are assigned on the basis of discrete, mutually exclusive
  categories, the resulting scale is called
 
  a. nominal
  b. ordinal
  c. interval
  d. ratio

[joechoochoy]

Answer to Question 1

d

Answer to Question 2

a