Statistics 2

Question 1

What assumptions have to be made about the data set in order to use the PMCC?

Answer 1

The data is bivariate, both variables being normally distributed.

Question 2

What has to be satisfied in order for a data set to have a binomial distribution?

Answer 2

• There must be exactly two outcomes
• There has to be a fixed number of trials
• Each trial is independent of all other trials
• There remains a constant probability of success throughout all of the trials

Question 3

Which criteria need to be met for a data set to have a Poisson distribution?

Answer 3

• The data points are randomly distributed
• The data points have a uniform rate of occurrence
• There is a constant probability of occurrence

Question 4

What is the objective of analysing contingency tables?

Answer 4

To assess whether there is an association between two variables