A variable such as z, whose value is z = x1x2 is added to a ...

[darbym82]

A variable such as z, whose value is z = x1x2 is added to a general linear model in order to account for potential effects of two variables x1 and x2 acting together. This type of effect is _____.
 a. impossible to occur
  b. called interaction
  c. called multicollinearity effect
  d. called transformation effect

Question 2

When a waiting system is in steady-state operation, the number of units in the system is not changing.
  Indicate whether the statement is true or false

[prumorgan]

Answer to Question 1

b

Answer to Question 2

F

[darbym82]

Wow, this really help

Thanks for the timely response, appreciate it