Explain the difference between a Lewis structure and a molecular formula.

Define investors’ expected rate of return.

What is the difference between adaptive expectations and rational expectations?

Describe allelic, epistatic, and environmental interactions.

Which of the following is true about open source software?

a. The program code is confidential.

b. The program can be changed and freely distributed.

c. The program can be freely distributed as long as the program code is not changed.

d. The program code is subject to copyright protection.

Implement a reload function that discards all changes to the current image and reloads it from disk.

Select a nation that interests you and prepare a report on its business customs and practices. How are they different from those in the United States? How are they similar?

Which of the following are likely to increase measured GDP, and which are likely to reduce it?

a. The fraction of women working outside the home increases.

b. There is a sharp increase in the crime rate.

c. Higher tax rates cause some people to hide more of the income they earn.

Calculate $\langle r \rangle$ and the most probable value of r for the H atom in its ground state. Explain why they differ with a drawing.