Last School Year, the Student Body of a Local University

question 35

Multiple Choice

Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors.A sample of 400 students taken from this year's student body showed the following number of students in each classification. ​ We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year.The expected number of freshmen is

• A) 120.
• B) 96.
• C) 113.
• D) 10.

Acknowledge the significance of radioactive isotopes in understanding Earth's age and geological events.

Identify the periods of Earth's history where significant evolutionary changes occurred.

Understand the relationship between continental drift, plate tectonics, and biodiversity development.

Understand the origins and types of fossil fuels.