The incomes of all families in a particular suburb can be represented by a continuous random variable.

The incomes of all families in a particular suburb can be represented by a continuous random variable.  It is known that the median income for all families in this suburb is $60,000 and that 40% of all families in the suburb have incomes above $72,000.  

For a randomly chosen family, what is the probability that its income will be between $60,000 and $72,000? 

Given no further information is available, what can be said about the probability that a randomly chosen family has an income below $65,000?  The class is Econ 221 I NEED HELP DOING THOSE QUESTIONS

A portfolio manager has asked you to analyse a newly acquired portfolio to determine its value and variability.  The portfolio consists of 50 shares of Alpha Music and 40 shares of Beta Shows.  Analysis of past history indicates that the share price of Alpha Music has a mean of $25 and variance of 121.  Similarly, Beta Shows has a mean share price of $40 with a variance of 225.  Your best evidence indicates that the share prices have a correlation coefficient of +0.5.  

Compute the mean value and variance of the portfolio.

If the correlation coefficient between the share prices were actually  – 0.5, what would be the mean value and the variance of the portfolio?  

Show more







Calculate Your Essay Price
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

Order your essay today and save 10% with the coupon code: best10