Adding and Subtracting Rational Expressions

The video tutorial covers the concept of two-way tables, explaining how they display two categories of data from the same source. It includes examples of survey data analysis, such as students playing instruments and sports, and constructing a two-way table. The tutorial also introduces relative frequency, demonstrating how to calculate it using survey data. The video concludes with exercises for students to practice these concepts.

How many students were surveyed about playing an instrument and a sport?

• 75 students

• 23 students

• 33 students

• 52 students

How many students play both an instrument and a sport?

• 14 students

• 19 students

• 33 students

• 9 students

How many students do not play a sport?

• 33 students

• 42 students

• 23 students

• 14 students

How many students ride the bus but do not buy their lunch?

• 35 students

• 44 students

• 28 students

• 19 students

What is the total number of students surveyed in Sidney's survey?

• 44 students

• 75 students

• 100 students

• 56 students

How many students do not ride the bus according to Sidney's survey?

• 9 students

• 28 students

• 19 students

• 37 students

What percentage of seniors do not have a part-time job?

• 45%

• 55%

• 42%

• 13%

How many seniors are expected to have both a part-time job and a driver's license?

• 180 seniors

• 150 seniors

• 200 seniors

• 168 seniors

What is the relative frequency of seniors having a part-time job but not a driver's license?

• 0.13

• 0.55

• 0.42

• 0.28

What is the total number of seniors surveyed about having a part-time job and a driver's license?

• 60 seniors

• 100 seniors

• 75 seniors

• 50 seniors