The following contingency table provides a joint frequency distribution for the popular votes cast in the presidential election by region and political party. Data are in thousands, rounded to the nearest thousand. Political Party Demo. Repub. Other Total I... Region 10,511 14,361 159 23,441 10,993 13,699 136 23,933 31122 10,539 13,393 A person who voted in the presidential election is selected at random. Compute the probability that the person selected voted Democrat. Answer may be given as a fraction or 3 place decimal. 9 Question 12 (4 points) Use the basic counting rule to solve the problem and state if it is a permutation or combination.. A singer-songwriter wishes to compose a melody. Each note in the melody must be one of the 12 notes in her vocal range. How many different sequences of 4 notes are possible? A/ Question 13 (4 points) Evaluate the following expressions. 8C3 :M Question 14 (4 points) Evaluate the following expressions. 101's A Question 15 (4 points) A pollster wants to minimize the effect the order of the questions has on a person's response to a survey. How many different surveys are required to cover all possible arrangements if there are 6 questions on the survey? [ AJ Question 16 (4 points) The library is to be given 3 books as a gift. The books will be selected from a list of 8 titles. If each book selected must have a different title, how many possible selections are there? :l'v Question 17 (6 points) Provide an appropriate response. Suppose that a class of 30 students is assigned to write an essay. 1) Suppose 4 essays are randomly chosen to appear on the class bulletin board. How many different groups of 4 are possible? 2) Suppose 4 essays are randomly chosen for awards of $10, $7, $5, and $3. How many different groups of 4 are possible? Explain the significant differences between problems 1 and 2. 3260\" V K} (XI Paragraph V B I U V A/ g V