8) Two cars are 170 miles apall travel toward each other on the same road. They meet in 2 hours. One car travels 1 mph faster than the other. What is the average speed of each car? -14 -12 -10 -8 -6 4 2 0 2 4 6 8 10 9) Solve the inequality. Write the 18) Solve the inequality and graph the solution set. 5x +1 <6 solution set in interval notation. -3 -10 -8 -6 4 2 0 2 4 6 8 10 10) Solve the inequality. Write the solution set in interval notation. -2(6y-7)+y2 2y-(-4+y) 19) Use the slope formula to determine the slope of the line containing the two points 11) Let C = {xlx>4} and D =(xlx -17]. Determine the given union. Express (2,7) and (-9, 3) the answer in interval notation. 20) Find the x-intercept and the Cu D y-intercept then graph the equation. -5x-3y 15 12) Solve the compound inequalit Write the answer in interval notation. 21) Write the equation in slope-intercept 9x 54 and 7-x>-3 form. Then, graph the line using the slope and y-intercept. 13) For the compound inequality, give the 2x-3y = 6 solution set in both interval and graph forms. 12x -8 < 4x or -2x s-6 4 14) Solve the inequality. Write the answer -5-4-3-2-11JI 1 2 3 4 5 in interval notation. -20 2x-9<16 -2 15) Solve the absolute value equation. 4 18k-41 = 16 5 16) Solve the absolute value equation. 1-5x +4)-12 =-4 DRAFT Page 2

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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.