This will happen if you try to use an index that is out of range for a list. a. A ValueError exception will occur. b. An IndexError exception will occur. c. The list will be erased and the program will continue to run. d. Nothing—the invalid index will be ignored.

This removes an item at a specific index in a list.

a. The remove method

b. The delete method

c. The del statement

d. The kill method

In the radical expression $\sqrt[5]{125}$ what is the index? What is the radicand?

What is the relationship between the speed of light and the index of refraction of a transparent substance?

How does the speed of light change as the index of refraction increases?

Look at the following statement:
numbers = [10, 20, 30, 40, 50]
a. How many elements does the list have?
b. What is the index of the first element in the list?
c. What is the index of the last element in the list?

Total, nondiversifiable, and diversifiable risk David Talbot randomly selected securities from all those listed on the New York Stock Exchange for his portfolio. He began with a single security and added securities one by one until a total of 20 securities were held in the portfolio. After each security was added, David calculated the portfolio standard deviation, $\sigma_{r_p}$. The calculated values are shown in the following table.

c. Describe which of the two risk components is the relevant risk, and explain why it is relevant. How much of this risk exists in David Talbot's portfolio?

Realtors use an index to compare housing prices in major cities. The housing price index values for several cities are given in the table below. Use the following formula to answer the question.

$$\underset{\text { (other town) }}{\text { price }}=\underset{\text { (your town) }}{\text { price }} \times \frac{\text { index of other town }}{\text { index in your town }}$$

$$\begin{array}{lc|lc} \text { City } & \text { Index } & \text { City } & \text { Index } \\ \hline \text { Atlanta } & 100 & \text { Las Vegas } & 115 \\ \text { Boston } & 146 & \text { Los Angeles } & 190 \\ \text { Chicago } & 105 & \text { Miami } & 161 \\ \text { Dallas } & 121 & \text { Phoenix } & 122 \\ \text { Denver } & 136 & \text { San Franciscol } & 172 \end{array}$$

For a house valued at $\$ 600,000$ in Boston, find out the price of a comparable house in Los Angeles.

The index of refraction is always larger than or equal to 1, but why is that?

Compute the sample mean and standard deviation for each index.

The exercise deal with the Shannon index of diversity. Note that in two communities with the same number of species, a larger index indicates greater diversity.

A study of barn owl prey in a particular area produced the following data:

Find the index of diversity of this community. Is this community more or less diverse than the one in the previous exercise?

(a) Identify three groups that White says heard the call of the American idea. (b) Infer: How did the call of the American idea affect each of them?

What is the misery index and is it official or not, and when does it usually reach a peak?

Are securities that provide for a sinking fund more or less risky from the bondholder’s perspective than those without this type of provision? Explain.