For each part, copy the regular hexagonal region and follow the directions. (Answers for the first three parts are in the standard set of pattern blocks in the *"Masters," which can be found online at www.macmillanlearning.com/reconceptmath3e.) a. Cut the hexagonal region into three identical rhombi. b. Cut the hexagonal region into six equilateral triangles. c. Cut the hexagonal region into two isosceles trapezoids. d. Cut the hexagonal region into 12 identical right triangles. e. Cut the hexagonal region into six identical kites. f. Cut the hexagonal region into four identical trapezoids. 8. What are some quantities associated with a polygon? With a polygonal region? 9. You know that the sizes of all the angles in a triangle add up to 180°. Justify that the sum of the sizes of all the angles in every quadrilateral is 360°. Hint: Draw one diagonal. Does your justification work on quadrilaterals such as the one shown at the right? 10. Find the missing sizes of the angles marked for each quadrilateral. (Hint: See Learning Exercise 9.) 50° 109°i. b. a. 85° 780

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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.