11. A venn diagram can be used to caloulate which of the followins probabilces of A and B? Circle one response a. The union of A and 8 b. The intersection of A and B c. The conditional probability of A given B d. All of the above 12. Any score lower than the population mean wal have a negasive 2 value a. True b. False 13. Both correiation and regression involve the measurement of what kind of rebacionship between two variables select one answer a. Causal relationship b. Linear relationship c. Any type of relationahip d. Direct relationship e. All of the above 14. If a sample is representative of the population from which it's drawn, ir's still possibie that the sample mean will be differem from the population mean. This is called: a. Estimation ertor b. Sampling error c. Statistical enor d. Random error 15. The bottom row of a tree dagram shows all the possible outcomes of an experiment. a. True b. ralse 16. Under which of the following conditions would you use a t-statistic instead of a 2 statistic? Select one answer. 2. When you're testing a hypothesis about a mean and o is unkriown b. When you're testing a thypothesis about a proportion c. When youre testing a hypothesis about a mean and o is known 6. Wheo you'ne measuring the retationship between two varlables e. both a and b