When using correlation analysis a +1 result would indicate: A.A strong negative relationship. B.No relationship C.A strong positive relationship. D.A problem with the data. 1.1 The inter-quartile range is: (5, 10, 18, 20, 22, 24, 24, 24, 28, 30) A.5 B.6 C.18 D.25 1.2 Below what value would an observation be classified as a low outlier? (5, 10, 18, 20, 22, 24, 24, 24, 28, 30) A.5 B.7.5 C.9 D.10 2. Suppose that we examined grade data from Prof. A and Prof. B and discovered that the class average was 60% for Prof. A and 73% for Prof. B. Prof. A teachers at 5:30pm and Prof. B teaches at 1pm. We can conclude that A.A is a better teacher than B. B.Evening students are worse than day students. C.We have only correlation and not causation. D.We have causation but not necessarily correlation. 3. Among the Histograms above, the one that best reflects the Box and Whisker Chart is Below is a Box and Whisker chart and several possible histograms. 10 15 20 25 30 a b. d