If Battu practices playing the piano for one hour without a ...

[tth]

If Battu practices playing the piano for one hour without a break, his mother allows him to watch television. This is an example of an _____ schedule.
 
  A) FD
  B) FI
  C) FT
  D) FR

Question 2

A pigeon must circle continuously for an average of 10 seconds in order to earn access to food. This is an example of a _____ schedule.
 
  A) variable time
  B) variable interval
  C) variable ratio
  D) variable duration

[amandanbreshears]

Answer to Question 1

A

Answer to Question 2

D