An economic sample a. can be obtained inexpensively b. is ...

[xclash]

An economic sample
 
  a. can be obtained inexpensively
  b. is small
   c. gives a good estimation of the population at reasonable cost
  d. is a combination of probability and nonprobability sampling procedures
  e. is used by economists to forecast financial trends

Question 2

The error of estimation is affected by
 
  a. sample size
  b. population size
  c. the variance of the data
  d. a and b
   e. a, b, and c

[Sarahjh]

Answer to Question 1

C

Answer to Question 2

E