__________ errors tend to cancel out over the long run whereas ...

[karateprodigy]

__________ errors tend to cancel out over the long run whereas __________ do not.
 
  a. Random; systematic
  b. Systematic; random
  c. Bias; systematic
  d. Bias; random

Question 2

Dennis consistently sets his watch 10 minutes ahead of the actual time. This is an example of
 
  a. random error.
  b. systematic error.
  c. reliability.
  d. validity

[macagnavarro]

Answer to Question 1

a

Answer to Question 2

b

[karateprodigy]

Excellent

[Bigfoot1984]

Thanks for the timely response, appreciate it