Which of the following is true? A random walk for stock price changes is inconsistent with observed patterns in price chang

Question

1. Which of the following is true?

A random walk for stock price changes is inconsistent with observed patterns in price changes.

If the stock market follows a random walk, price changes should be highly correlated.

If the stock market is weak form efficient, then stock prices follow a random walk.

All of these.

Both If the stock market follows a random walk, price changes should be highly correlated; and If the stock market is weak form efficient, then stock prices follow a random walk.

2. You are planning a trip to Australia. Your hotel will cost you A$150 per night for five nights. You expect to spend another A$2,000 for meals, tours, souvenirs, and so forth. How much will this trip cost you in U.S. dollars given the following exchange rates?
$1,926

$2,007

$2,782

$2,856

$3,926

3. A 12-year, 5% coupon bond pays interest annually. The bond has a face value of $1,000. What is the change in the price of this bond if the market yield rises to 6% from the current yield of 4.5%?

11.11% decrease

12.38% decrease

12.38% increase

14.13% decrease

14.13% increase