Question

1. the bar graph above represents the declared majors of freshman enrolling at a university. answer the following questions: a. what is the total freshman enrollment of the college? ( + or - 50 students)________ b. which major has the most students? c. how many students are majoring in physics?______ d. how many more students major in poly sci than in psych?______ 3. answer these questions based on the graph above. a. how much rain fell in mar of 1989?______ b. how much more rain fell in feb of 1990 than in feb of 1989?______ c. which year had the most rainfall?______ d. what is the wettest month on the graph?________

Explanation:

Step1: Find total freshman enrollment

Estimate values from bar - graph for each major: Chem ≈ 150, Physics ≈ 130, Econ ≈ 330, Poly Sci ≈ 240, Psych ≈ 220. Total = 150 + 130+330 + 240+220 = 1070.

Step2: Identify major with most students

By observing bar - heights, Econ has the highest bar, so Econ has the most students.

Step3: Determine Physics majors

From the bar - graph, the height of the Physics bar is approximately 130 students.

Step4: Calculate difference between Poly Sci and Psych majors

Poly Sci has about 240 students and Psych has about 220 students. Difference = 240 - 220 = 20.

(for rainfall questions):

Step1: Find rainfall in Mar 1989

From the line - graph, for Mar 1989, the rainfall is approximately 2 inches.

Step2: Calculate difference in Feb rainfall between 1990 and 1989

In Feb 1990, rainfall is about 4 inches and in Feb 1989 is about 2 inches. Difference = 4 - 2 = 2 inches.

Step3: Identify year with most rainfall

By observing the line - graph, 1990 has higher rainfall overall.

Step4: Determine wettest month

The highest point on the graph is in Apr 1990, so Apr 1990 is the wettest month.

Answer:

a. 1070
b. Econ
c. 130
d. 20