Please include a formula and explain the difference between SD and variance with your answer.
Find the standard deviation for a security that has three one-year returns of 5%, 10%, and 15%.
16.67% |
||
25.00% |
||
8.33% |
||
5.00% |
mean = (5% + 10% + 15%)/3
= 10%
variance = sum of [ (return - mean)^2]/n-1
= [(0.05-0.1)^2 + (0.1-0.1)^2 + (0.15-0.1)^2]/2
= 0.0025
standard deviation = sqrt(variance)
= sqrt(0.0025)
= 0.05
= 5%
Please include a formula and explain the difference between SD and variance with your answer. Find...
Explain the difference between linear speed and rotational speed. Include formula difference and how rotational speed is changed to linear speed.
Use the formula to find the variance and the standard deviation for the given sample data. Round your answer to one more decimal place than the original data. Show all the work. 7 9 12 5 8
11. Flipping coins: We flipped 40 coins, and observations are obtained as 25 Head and 15 Tail. Please test the variance to find out if there is a significant difference between the observation and expected value at 95% confidence level. [10 points] 11. Flipping coins: We flipped 40 coins, and observations are obtained as 25 Head and 15 Tail. Please test the variance to find out if there is a significant difference between the observation and expected value at 95%...
Consider a family of four people, aged 8, 10, 33, and 37 as a population a) Calculate the population variance and standard deviation for the ages. Show your work step by step b) Random samples of size two are drawn with replacement from this population and their ages are recorded Find the variance and standard deviation for each sample (using the formula that involves divisions by n-1) and fill in the 3rd and 4th columns of the table Find the...
3. Consider the following. n = 5 measurements: 3, 3, 1, 2, 5 Calculate the sample variance, s2, using the definition formula. Calculate the sample variance, s2 using the computing formula. Calculate the sample standard deviation, s. (Round your answer to three decimal places.)4. A distribution of measurements is relatively mound-shaped with a mean of 60 and a standard deviation of 13. Use this information to find the proportion of measurements in the given interval. between 47 and 73 5. A distribution of...
Question 7 2 pts Find the 98% confidence interval for the normally distributed difference between two population means in a paired difference sample given the following information: meand - 2.77, standard deviation Sd - 1.73, n= 10 O 10.99,4.55) O (0.89,4.45) O (119,4.35) (129.4.25) O (1.23,431)
10.Explain the difference between governmental in contrast to self-regulation. 11. Explain the underwriting function of an investment banker 13. Expound on three different approaches of distributing shares initially to the public markets. 14. Describe and define the 4 diverse security markets. 15. what has happened to transactions costs of trades inter temporally? Is your money safe in a broker dealer?
you are considering investing in two securities. Security 1 has a expected return of 12% and a standard deviation of return of 10%. Security 2 has an expected return of 9%and a standard deviation of returns of 8%. The correlation coefficient of returns for the two securities is 0.3. What would the weights be for each of the two securities in the minimum variance portfolio? W1= W2= Given the weights computed in (a), compute the expected return and standard deviation...
What is the defining difference between computer security and information security? Please provide your answer in 2-3 paragraphs.
Variance means a. difference between standard or applied amount and actual amount b. actual costs less actual rates c. standard costs less standard rates d. square root of standard deviation 2. Table Manufacturing Company produces one style of tables. The following data pertain to producing one table Planned production/month units (one table) 90 Piece of woods (M) 20 Estimated M price $40 Actual production Quantity purchased (QP) 22 Find actual price (AP) x Assuming that the manager wants the total...