How can the degrees of freedom be found in a contingency table ...

[armygirl]

How can the degrees of freedom be found in a contingency table with cross-classified data?
 
  A) When df are equal to rows minus columns
  B) When df are equal to rows multiplied by columns
  C) When df are equal to rows minus 1 multiplied by columns minus 1
  D) Total number of cell minus 1

Question 2

In a single exponential smoothing model, one smoothing constant is used to weigh the historical data, and the model is of primary value when the data do not exhibit trend or seasonal components.
 
  Indicate whether the statement is true or false

[stallen]

Answer to Question 1

C

Answer to Question 2

TRUE

[armygirl]

Thanks for the timely response, appreciate it

[nguyenhoanhat]

Wow, this really help