Poll Analysis and Club Membership

The video tutorial covers four math problems. It begins with an introduction and a problem about calculating airfare increases based on distance. The second problem involves pattern matching using a given formula. The third problem uses a Venn diagram to determine the number of students in overlapping clubs. The final problem analyzes poll data to find the number of people who did not answer yes to both questions. The instructor provides step-by-step solutions, emphasizing careful calculation and logical reasoning.

What percentage increase is expected for airfares of business trips less than 1,000 miles?

• 10%

• 25%

• 15%

• 20%

If the airfare for trips over 1,000 miles is $13,000 this year, what will it be next year after a 10% increase?

• $13,300

• $14,300

• $14,000

• $13,500

In the operation x star y, what is the result of 2 star -3?

• -3

• -5

• -4

• -2

What is the first step in solving the operation 2 star -3?

• Divide x by y

• Subtract x from y

• Add x and y

• Multiply x and y

How many students are in both the chess and drama clubs?

• 10

• 15

• 5

• 20

What is the total number of students in the three clubs?

• 85

• 80

• 74

• 70

In a nationwide poll, what fraction of people said yes to both questions?

• 1/3

• 1/12

• 1/6

• 1/4

What fraction of people said yes to the first question but no to the second?

• 1/6

• 1/12

• 1/3

• 1/4

How many people did not answer yes to both questions in the poll?

• N/4

• N/3

• 11N/12

• N/2

What is the total number of people interviewed in the poll if 11/12 did not answer yes to both questions?

• N/12

• N

• 11N

• 12N