In Trying to Estimate the Variability in the Population in Order

Multiple Choice

In trying to estimate the variability in the population in order to determine pq,which of the following represents viable alternatives?

A) Use a random number generator to provide two random values for p and q.
B) Use the most conservative approach,p = 10,q = 90.
C) Use 90/10 or find a former study and calculate the variance or conduct a pilot study.
D) Use 1/5 or find a former study and calculate the variance or conduct a pilot study.
E) Use 50/50 or find a former study and calculate the variance or conduct a pilot study.