Which of the following probability distributions is NOT associated with spatial dispersion? O a. poisson O b. negative binomial Oc. bìnomial O d. normal Random sampling: O a. is important to avoid...

Extracted text: Which of the following probability distributions is NOT associated with spatial dispersion? O a. poisson O b. negative binomial Oc. bìnomial O d. normal Random sampling: O a. is important to avoid bias O b. provides a representative sample of a population O c. can be accomplished with a random number generator, table, or a pair of dice O d. all of the above If two variables are positively correlated: O a. one variable causes variation in the other variable O b. the two variables are related to each other, where increases in one is associated with increases in the other O c. there is no relationship between the variables O d. there is a significant difference between the variables