ACT Science Practice Questions: Data-Representation - dummies

# ACT Science Practice Questions: Data-Representation

Most students find the data representation questions in the Science section to be the easiest type of passage on the ACT — not coincidentally because it usually has the least text. The ACT has two to three data representation passages, each with just five to six questions.

Here’s a sample data-representation passage for you to try.

## Sample passage and questions

Very few humans live to the age of 100. In other words, almost all members of the human population who were born in a given year will die within 100 years. Scientists, health professionals, and life insurance agents are interested in examining how many people in a population will live to be a certain age. One way to measure this information is to look at how much of the population has died after a certain number of years. A graph documenting the results of one such study is presented here.

Percentage of the population that has died after years since birth.
1. According to the figure, approximately what percentage of the human population lives to at least 80 years of age?

(A) 10 percent

(B) 40 percent

(C) 60 percent

(D) 80 percent

2. The increase in percentage of deaths is highest for which of the following intervals?

(F) 0 to 20 years

(G) 20 to 40 years

(H) 40 to 60 years

(J) 60 to 80 years