In a 2 x 2 contingency table, if we keep the marginals at their observed values, how many fo scores are free to vary?
a. 3 c. 1
b. 0 d. all of them
Question 2
The computation of fe _________.
a. is based on population proportion estimates
b. is based on known population proportions
c. is based on population means
d. none of these