In: Civil Engineering

In comparing probability distributions, which of the following statements is TRUE?

Select one:

1. The geometric and Poisson distributions have the
lack of memory property.

2. The exponential and Poisson distributions are interchangeable
because they have the exact same

random variable.

3. The geometric and negative binomial distributions both have a random number of trials.

4. The uniform and normal distributions have the same distribution shapes.

5. The Poisson distribution is the limiting form of the negative binomial distribution.

1. False, Among all the continuous distributions only the exponential distributions have the lack.of memory property.

2. True, Poisson distribution deals with the number of occurrences in a fixed period of time, while the exponential distribution deals with the time between occurrences of successive events as time flows by continuously. So, there's a relationship here. And also the random variable used is same.

3. True, the geometric distribution is a special case of negative binomial distribution both have random number of trails. In negative binomial we have a count of successes from repeated counts in a experiment while geometric we repeat number of trails for a single success.

4. False, Normal distribution have the bell shape curve and the uniform distribution have the rectangular distribution

5. True, Poisson distribution can be expressed as a limiting case of negative binomial distribution. In a series of trails for success or failure then a parameter is introduced to indicate the number of failures that stops the count.

3..
1,
Which of the following statements is true?
Select one:
a. It is possible to make conclusions about the value of stock
options without making any assumption about the volatility of stock
prices.
b. The put-call parity also hold for American options
c. The value of a call generally increases as current stock
price, the time to expiration, the volatility and the risk-free
interest rate decrease.
d. The value of a put generally decreases as current stock
price, the...

1. Which of the following statements are true? Select all that
apply.
Select one or more:
a. Earnings per share is calculated by dividing retained
earnings by the number of shares of common stock outstanding.
b. The creditors of a firm must be satisfied before any earnings
can be distributed to the common shareholders.
c. When referring to ratio comparisons, time-series analysis
compares a firm to that of an industry leader.
d. The operating profit margin must take into account...

Which one of the following statements is NOT true? Select one:
A. The need for funding does not end when a company goes public. B.
Approval is obtained from the board of directors to issue
securities. C. The lowest-cost source of external funds is often an
open offer to the public. D. The investment bank decides how much
money the company needs to raise and what type of security - such
as debt, ordinary shares or preference shares - to...

Which of the following are TRUE? Select all that apply.
A probability of 1 is the same as a probability of 100%
The difference between interval and ordinal data is that
interval data has a natural zero.
If you are doing a study and the population is Americans, the
easiest type of study to run would be a simple random sample.
If your population is 80% female and your sample is 60% male,
there is undercoverage bias.
In order to...

1. Which of the following statements is true?
Select one:
a. holding everything else constant, an increase in planned
investment spending shifts the AE function downward, leading to a
higher level of GDP
b. Most recessions start with a decrease in investment
spending.
c. Economists think that decreases in consumer spending often
follow decreases in investment spending.
d. Answers (a), (b), and (c) are all true
e. Answers (b) and (c) are both true
2. An increase in the market...

1. Which of the following statements about the adrenergic
receptors is TRUE? Select one:
a. Alpha 1, alpha 2, and beta 1 receptors have greater affinity
(or sensitivity) to norepinephrine than epinephrine.
b. Beta 2 receptor has an equal affinity for norepinephrine and
epinephrine while beta 3 receptor has a greater affinity for
epinephrine than norepinephrine.
c. Beta 1, beta 2, and beta 3 receptors increase cAMP but only
beta 1 receptor causes an excitatory response in the heart
muscle....

Which of the following statements about COBIT 5 is not true?
Select one: a. It is a framework designed to assist with
critical business issues related to the governance and management
of information technology b. One of the five principles of COBIT 5
is Enabling a Holistic Approach c. COBIT 5 helps companies only if
they use it in addition to following COSO ERM d. All of the above
statements are true

Which one of the following statements about insurer
profitability is true?
Select one:
a. Profitability is not important to insurance companies
b. Profitability is the only important goal of insurance
companies
c. Cooperative insurers should earn a profit, but this is not
their primary goal
d. Cooperative insurers are prohibited from earning a profit

Which one of the following statements is NOT true?
Select one:
A. Venture capitalists often require an entrepreneur to make a
substantial personal investment in the business.
B. Venture capitalists do not require an entrepreneur to make a
personal investment in the business.
C. Venture capitalist's in-depth knowledge of the industry and
technology reduces risk.
D. The key idea behind staged funding is that each funding stage
gives the venture capitalist an opportunity to reassess the
management team and the...

Exactly one of the following statements is true. Which one?
Select one:
a. Every convergent sequence is monotonic.
b. Every Cauchy sequence is monotonic.
c. Every Cauchy sequence is bounded.
d. None of the other statements is true.
e. Every monotonic sequence converges

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