What is variance and standard deviation? How are they defined? Explain how the basic expected value...
Find the expected value, the variance, and the standard deviation, when they exist, for the probability density function. if O sxs 2 f(x) = 128 5, ify if x>2 375 What is the expected value? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. The expected value is u (Round to two decimal places as needed.) OB. The expected value does not exist. What is the variance? Select the correct choice below...
Calculate the expected value, the variance, and the standard deviation of the given random variable X. (Round all answers to two decimal places.) Forty-one darts are thrown at a dartboard. The probability of hitting a bull's-eye is .2. Let X be the number of bull's-eyes hit. expected value variance standard deviation
What are the expected value, variance and standard deviation of the following probability distribution? Number of Offices Proportion of Students p(X) 0 0.08 1 0.288 2 0.367 3 0.122 4 0.081 5 0.054 6 0.008 E(x) Var(x)
A more risky stock has a higher ________. expected return standard deviation variance standard deviation and variance
(a) Calculate the expected rate of return, variance and standard deviation of bond and common stock. (b) Do you think the above stocks and bonds is a good combination to form an investment portfolio? Explain why.(c) Assuming you invest in the portfolio with weights of 70% in stock and 30% in bonds. What are the expected rate of return and standard deviation of the portfolio?
issue on an individual asset - what is the expected return, variance and standard deviation of asset A only I WA TISK and fetui11 man those that are provided in the article. The table below gives information on three risky assets: A, B, and C. Correlations Asset Expected return Standard Deviation of the Return B C 0.4 0.15 11.5 23 0.25 B 14 43 0.25 1 " CI 18 58 0.4 0.15 There is also a risk-free asset F whose...
Find the expected value E(X), the variance Var(X) and the standard deviation σ(X) for each of the density functions in f (x) = 3 4 (1 − x2) on [−1, 1]
Describe how variance and standard deviation are used to measure the variability of individual stocks. Explain how an investor chooses the best portfolio of stock to hold.
b. What are the variance and the standard deviation of each asset? c. What is the expected return of a portfolio with equal investment in all three assets? d. What is the portfolio's variance and standard deviation using the same asset weights in part Please show all steps! Expected return and standard deviation. Use the following information to answer the questions. Return on Asset R in Return on Asset S in State Return on Asset T in State State of...
What is the relationship between the variance and the standard deviation? Multiple Choice Variance is the square root of the standard deviation. There is no constant relationship between the variance and the standard deviation. Variance is the square of the standard deviation. Variance is twice the standard deviation.