Two securities, X and Y. Determine bases on the info given the AVERAGE RETURN, STANDARDDEVIATION, andCOEFFICIENT of VARIATION.
YEAR RETURN X RETURN Y
1995 16.5% 17.5%
1996 14.2%

Two stocks with actual returns as follows are being considered by me as an investor. Assist me by calculating the standarddeviationand the coefficient of variationand avise me based on a comparison of risk and return.
Stock X - Actual Returns: 6%, 12%, 8%, 10%
Stock Z - Actual Returns: 9.5%, 9.25%, 8%, 9%

Coefficient of VariationandStandardDeviation are two measures of dispersion or spread among the data values.
Let's say we have two different sets of data.
Explain which of the two mentioned measures can more accurately find which of these two data sets have more spread or variability in their data values.
You can se

The __________ is the ratio of __________ to the _____________.
a standarddeviation; covariance; expected value
b coefficient of variation; expected value; standarddeviation
c correlation coefficient; standarddeviation; expected value
d coefficient of variation; standarddeviation; expected value
e

The market portfolio is assumed to be composed of two securities, investment X and investment Y. Determine based on the information given the average return, standarddeviationandcoefficientvariation. Which is the better investment?
Year Return X Return Y
1997 16.5% 17.5%
1998

State Pi kj
1 0.3 20%
2 0.4 5
3 0.3 12
Calculate the expected return for security j.
Calculate the standarddeviation for security j.
Calculate the coefficient of variation for security j.

Company A is considering a proposed project whose estimated NPV is 12 million. The estimate assumes that economic conditions will be "average". However the CFO realizes that conditions could be better or worse, so a scenario analysis was performed and the following results were obtained;
Economic Scenario Prob.

In answering the following questions, it is given that the potential investment has the following range of possible outcomes and probabilities: 10% probability of a -20% return, 40% probability of a 15% return, 40% probability of a 25% return, and a 10% probability of a 50% return.
(a) Calculate the weighted mean of the proba

I have the following problem to figure out and I am completely lost:
The spread in the annual prices of stocks selling for under $10 and the spread in prices of those selling for over $60 are to be compared. The mean price of the stocks selling for under $10 is $5.25 and the standarddeviation $1.52. The mean price of those