超星 - 第十五周作业

单选题

北沙参除了能清肺养阴,还能( )

A. 益胃生津
B. 软坚散结
C. 补气固表
D. 补肝肾,强筋骨

查看答案

单选题

A stock is priced at ＄100.00 and follows a one-period binomial process with an up move that equals 1.05 and a down move that equals 0.97. If 1 million Bernoulli trials are conducted, and the average terminal stock price is ＄102.00, the probability of an up move (p) is closest to:

A. 0.375
B. 0.500
C. 0.625

查看答案

单选题

In the binomial model, the difference between the up and down factors best represents the:

A. volatility of the underlying.
B. moneyness of an option.
C. pseudo probability.

查看答案

单选题

Which is the correct pair of statements? The BSM model assumes:

A. the return on the underlying has a normal distribution. The price of the underlying can jump abruptly to another price.
B. brokerage costs are factored into the BSM model. It is impossible to trade continuously.
C. volatility can be predicted with certainty. Arbitrage is non- existent in the marketplace.

查看答案

单选题

The Black-Scholes-Merton model assumes that:

A. Only long positions can be taken in securities.
B. Translation costs must be proportional to the price of the underlying security.
C. Securities are perfectly divisible.
D. The underlying security’s price follows a normal distribution.

查看答案

单选题