what does Coefficient of Variation tell us (how is it useful) and what does Standard Deviation...
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Ans:
Coefficient of Variation is a measure of relative variation or dispersion,as it is the ratio of the standard deviation to the mean but standard deviation is a absolute measure of dispersion.
We can compare the variability of two different variables(i.e. one data series to another) using coefficient of variation.
If SD is dollars 7000,it means that it is on average 7000 away from the mean.
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what does Coefficient of Variation tell us (how is it useful)
and what does Standard Deviation...
5. Calculate the coefficient of determination (Rsquared) for the above portfolio 6. What does the coefficient...
5. Calculate the coefficient of determination (Rsquared) for the above portfolio 6. What does the coefficient of determination tell us? 7. What is the beta of the above portfolio? 8. What is the expected return on ZYX stock given the following: Return on the market 8% Beta 1.3 Treasury bill rate 2.5% 9. What is the expected return on CBA stock given the following: Beta .5 Risk free rate 3.1% Return on the market 15.7% 10. What is the expected...
EXTRA RISK PROBLEMS Stock A Stock B Expected Return 10% 16% Standard Deviation Correlation coefficient with...
EXTRA RISK PROBLEMS Stock A Stock B Expected Return 10% 16% Standard Deviation Correlation coefficient with the Market Correlation coefficient with Stock B Risk free rate 25% Expected return on the Market 12% Standard deviation of the Market 18 1. What is the expected return on a portfolio comprised of $6000 of Stock A and $4000 of Stock B? 2. What is the Standard deviation of this portfolio? 3. Does it make sense to combine these two in this way?...
Coefficient of Variation The coefficient of variation standardizes a variable's dispersion (standard deviation) relative to its mean. Imagine two variables, each with a standard deviation of 20....
Coefficient of Variation The coefficient of variation standardizes a variable's dispersion (standard deviation) relative to its mean. Imagine two variables, each with a standard deviation of 20. If Variable 1 has a mean of 100 and Variable 2 has a mean of 10, it is obvious that has more relative uncertainty. The coefficient of variation, the amount of risk per unit of the mean, is found by dividing the standard deviation by the mean, as follows: CV = Standard Deviation...
This data is from a sample. Calculate the mean, standard deviation, and coefficient of variation. 49.1...
This data is from a sample. Calculate the mean, standard deviation, and coefficient of variation. 49.1 41.2 21.9 40.5 17.5 35.2 30.3 Please show the following answers to 2 decimal places. Mean - Standard Deviation - Coefficient of Variation % (Please enter a whole number.)
The coefficient of variation CV describes the standard deviation as a percent of the mean. Because...
The coefficient of variation CV describes the standard deviation as a percent of the mean. Because it has no units, you can use the coefficient of variation to compare data with different units. Find the coefficient of variation for each sample data set. What can you conclude? Standard deviation CV Mean Click the loon to view the data sets. 0 Data Table - 100% Creights - % (Round to the nearest tenth as needed.) Heights Weights Print Done
Standard deviation is a useful concept in performance management. Let us say that a director in...
Standard deviation is a useful concept in performance management. Let us say that a director in a local fire department wants to know any variation between the performance of this year and that of the last year. He draws a sample of 10 response times of this year ( in minutes): 3.0, 12.0, 7.0, 4.0, 4.0, 6.0, 3.0, 9.0, 11.0, and 15.0, comparing them with a sample of 10 response times last year ( in minutes): 8.0, 7.0, 8.0, 6.0,...
What does the variance or standard deviation tell you about a population that the mean does...
What does the variance or standard deviation tell you about a population that the mean does not tell you? The mean, median, and mode are three different statistical approaches to describe the middle individual in a population. Explain which of these statistics of location should be used when viewing a histogram ?
Find the variance, standard deviation, and coefficient of variation of the data (assume the data represents...
Find the variance, standard deviation, and coefficient of variation of the data (assume the data represents a sample): 0,2,2,3,4,6 Find the z-score using the value 6 from the data. Please explain!
What do the variance, S.E., or standard deviation estimates tell you about your population that the...
What do the variance, S.E., or standard deviation estimates tell you about your population that the mean does not tell you? Why is it important to report some measure of variation, along with the sample size, whenever you report a calculated mean?
Can the coefficient of variation be higher than the standard deviation? If so, under what circumstances?
Can the coefficient of variation be higher than the standard deviation? If so, under what circumstances?
5. Calculate the coefficient of determination (Rsquared) for the above portfolio 6. What does the coefficient of determination tell us? 7. What is the beta of the above portfolio? 8. What is the expected return on ZYX stock given the following: Return on the market 8% Beta 1.3 Treasury bill rate 2.5% 9. What is the expected return on CBA stock given the following: Beta .5 Risk free rate 3.1% Return on the market 15.7% 10. What is the expected...
EXTRA RISK PROBLEMS Stock A Stock B Expected Return 10% 16% Standard Deviation Correlation coefficient with the Market Correlation coefficient with Stock B Risk free rate 25% Expected return on the Market 12% Standard deviation of the Market 18 1. What is the expected return on a portfolio comprised of $6000 of Stock A and $4000 of Stock B? 2. What is the Standard deviation of this portfolio? 3. Does it make sense to combine these two in this way?...
Coefficient of Variation The coefficient of variation standardizes a variable's dispersion (standard deviation) relative to its mean. Imagine two variables, each with a standard deviation of 20. If Variable 1 has a mean of 100 and Variable 2 has a mean of 10, it is obvious that has more relative uncertainty. The coefficient of variation, the amount of risk per unit of the mean, is found by dividing the standard deviation by the mean, as follows: CV = Standard Deviation...
This data is from a sample. Calculate the mean, standard deviation, and coefficient of variation. 49.1 41.2 21.9 40.5 17.5 35.2 30.3 Please show the following answers to 2 decimal places. Mean - Standard Deviation - Coefficient of Variation % (Please enter a whole number.)
The coefficient of variation CV describes the standard deviation as a percent of the mean. Because it has no units, you can use the coefficient of variation to compare data with different units. Find the coefficient of variation for each sample data set. What can you conclude? Standard deviation CV Mean Click the loon to view the data sets. 0 Data Table - 100% Creights - % (Round to the nearest tenth as needed.) Heights Weights Print Done
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