Question 2 (a) With the help of relevant scatter diagrams explain positive correlation, negative correlation, and no correlation.
(b) Whatare the (ranges) numerical values that depict positive correlation, negative correlation and no correlations?
Question 3.Briefly comment on the following:
a)Comparison between two things cannot be made unless they are really alike.
c) Research problem would be both abstract and of applied interest
d) Statistical meaning of bias is error
Question 4. Write short notes on the following
c) Utility of chi-square test
Question 5. Distinguish between the following