Question

practice #6

1. how does the enrollment in physical science compare with chemistry over the years?
2. why does this graph have a legend?
3. what year had more students enrolled in chemistry than physical science?

students enrolled in physical science and chemistry at north high school vs. years
legend
chemistry
physical science

Explanation:

1. By observing the graph, we can see the trends of enrollment in physical science and chemistry over the years. Physical science enrollment generally increased while chemistry enrollment had more fluctuations.
2. A legend is used to identify which line corresponds to which data - set. In this graph, it tells us which line represents chemistry and which represents physical science.
3. We compare the heights of the two lines for each year. In 1984 and 1985, the line for chemistry is higher than that for physical science, meaning more students enrolled in chemistry than physical science in those years.

Answer:

1. Physical science enrollment generally increased and chemistry enrollment fluctuated.
2. To identify which line represents which data - set.
3. 1984 and 1985.