4. If two variables X and Y have a positive correlation, then a. the point in the scatter plot lie in the first quadrant only. b. the coefficient of determination is always negative. c. large values of X are associated with large values of Y. d. small values of X are associated with small values of Y. For numbers 5 and 6, consider the following bivariate data. 10 12 25 18 20 22 28 9. 14 19 20 25 12 18 30 5. What is the correlation coefficient of the given data? a. 0.6921 b. -0.6921 c. 0.8823 d. -0.8823 6. What conclusion can be made from the test of significance of the correlation coefficient? a. The two variables have a significant positive linear relationship. b. The two variables have no significant positive linear relationship. c. The two variables have a significant negative linear relationship. d. The two variables have no significant negative linear relationship.

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.