3. The scatterplot given below measures the carats size of diamonds to the price of engagement rings for 30 recent ring sales. Let x represent the size in carats and y represent the price of the ring. 1100 1000 300 800 700 600 500 400 300 200 0.20 0.25 0.30 0.35 0.10 0.15 Size in Carats a. Which of the following could be the value of r? -0.309, 0.675, 0.996, -0.996, -0.675 b. Given that the regression line has a slope of 1230.5 and a y-intercept of 100.5, find the slope-intercept equation of the regression line. c. Use the regression line to predict the y-value for the x-value 0.20. Price

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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.