Purchase Solution

Distribution and Security Analysis

Not what you're looking for?

Ask Custom Question

2. Security analysts are professionals who devote full time efforts to evaluating the investment worth of a narrow list of stocks. The following variables are of interest to security analysts. Which are discrete and which are continuous random variables?

a. the closing price of a particular stock on the New york stock exchange
b. the number of shares of a particular stock that are traded each business day.
c. the quarterly earnings of a particular firm
d. the percentage change in yearly earnings between 2008 and 2009 for a particular firm
e. the number of new products introduced per year by a firm
f. the time until a pharmaceutical company gains approval from the U.S. FDA to market a new drug

12. The random variable x has the following discrete probability distributions:

x 1 3 5 7 9
p(x) .1 .2 .4 .2 .1

a. list the values x may assume
b. what value of x is most probable
c. display the probability distribution as a graph
d. find P(x=7)
e. find P(x > or = 5)
f. find P(x>2)

14. Explain why each of the following is or is not a valid probability distribution for a discrete random variable x:

a. x 0 1 2 3
p(x) .1 .3 .3 .2

b. x -2 -1 0
p(x) .25 .50 .25

c. x 4 9 20
p(x) -.3 .4 .3

d. x 2 3 5 6
p(x) .15 .15 .45. 35.

Purchase this Solution
Solution Summary

The solution discusses the distribution and security analysis.

Solution Preview

2. Answer:

a. the closing price of a particular stock on the New york stock exchange
- discrete since there are only finite number of values

b. the number of shares of a particular stock that are traded each business day
- discrete since there are only finite number of values

c. the quarterly earnings of a particular firm
- discrete since there are only finite number of values

d. the percentage ...

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

View More Free Quizzes
Related BrainMass Solutions

  • Developing a Marketing strategy

    Because of this, an indirect distribution channel through both the internet and other security professionals would best suit the needs of potential customers.

  • Patch Management/Software Distribution, Trouble Ticketing

    source: http://www.landesk.com/docs/news/Security-Patch-Manager-BaseLine-06-en-US.pdf According to a recent IDC report, "Worldwide Security and Vulnerability Management Software Market Forecast and Analysis, 2005-2009: Taking Control of the Security

  • Client-server

    "6.What should be considered when monitoring and troubleshooting a network? " - Traffic analysis, and security issues mentioned above. The pros and cons of using an embedded user id and password are explained.

  • Technology and Legal Issues

    Security and privacy 2. Copyright laws 3. Analysis 4.

  • profit or loss for Security Brokers Inc

    ., the terms were as follows: Price to public: $5 per share Number of shares: 3 million Proceeds to Beedles $14,000,000 The out-of-pocket expenses incurred by Security Brokers in the design and distribution of the issue were $300,000.

  • Fundamental analysis and technical analysis

    For example, a security analyst at an investment bank may produce a security analysis for distribution to clients.

  • Determining if the normal approximation to the binomial distribution should be used.


    In case 1, n=800 and p=0.01, then np=8 > 5 and n(1 - p)=792 > 5
    So you can use normal approximation to the binomial distribution.

  • Employee empowerment

    Careful analysis of design implementation. Some desirable personality characteristics for security personnel would be effective leadership skills, effective observational skills, and effective crisis mangement skills.

  • IS System Security: importance, overview, challenges,

    (p. 146) Management must review all of the policies and security controls used for data distribution both internal and external to their company.

View More Related Solutions