Questions 3 through 6 refer to the following graph. 

We all know that teenagers like music. Yesterday, in a survey conducted by the National Institute of Music, 300 teenagers were asked about their favorite kind of music. The teenagers were divided into three groups of 100. The teenagers were divided according to their age: 14-15 year olds, 15-16 year olds, and 16-17 year olds. The teenagers voted for the music they like by using a computer that counted their votes.

As you can see in the graph above, pop music was the type of music that was the most popular with all age groups. Jazz and classical music received the lowest number of votes. However, older teenagers tended to like these two kinds of music more than the younger groups. Hip Hop was not as popular as was expected.

The teenagers, who were all male, were not allowed to discuss their choices with others before the survey took place. Each participant voted individually and was unable to see what choices were made by others. The researchers plan to carry out the same survey again next year, using the same teenagers. They want to see how much the teenagers’ tastes in music change in one year. Next year’s survey may also include female participants. The National Institute of Music is a government funded organization that promotes music and musicianship among young people nationwide. It also offers scholarships for young people who have outstanding musical abilities.

 

 

3. How many teenagers were there in each group?

Questions 8 through 10 refer to the following article. 

How often do you use a vending machine? If you are like most people, you probably use one every day. They can be found all over the world. In America, these machines make billions of dollars every year.

Vending machines sell almost every kind of product that you can think of. Some of them sell drinks, while others sell candy and snacks. For workers who don’t have any time for lunch, many businesses and public buildings provide vending machines that also sell soups, salads, sandwiches, fruits, and desserts. Vending machines may also offer products such as stamps, train and bus tickets, newspapers, and other kinds of merchandise. There are even some vending machines that sell flowers.

Vending machines have been a great success since they were first introduced to the marketplace. What are some of the reasons for this success? First, they save time. You may not have time to go to the store during your break to buy a soda, but you can go to the vending machine in the corridor. Secondly, they are open 24 hours a day. You can buy something even when all the local stores are closed. Another reason is that customers usually don’t need to wait in line. At the store there may be many people in front of you and you have to wait for the cashier to serve you, but at the vending machine your transaction is all finished in moments. Lastly, the machines save companies money because there is no need for salesclerks and cashiers. The machine will do all the work and it doesn’t need to be paid a salary or….

 

7. What do these machines provide?