Is the probability density function a valid PDF? * if x < 0 if 0 < x < 1 if x > 1 F(x) = x2 +=x3/2 %3D ON/30
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- Suppose that the random change in value of a financial asset is X over the first day and Y over the second. Suppose also that Var(X) =18 and Var(Y) = 26 In this case, the total change in the value over these two days is given by X +Y. Do you have enough information to compute Var(X +Y)? If so, compute this value. If not, explain what additional information you need to do so.3. 3 SV3+ Vx dxVE/2 xdx
- 13. If mED = (9x-3)', mBF = (15x – 39)', and mZBCF = (11x-9)', find mED. %3D %3D DELL 6. 8. 2 3 nEvaluate ((sx==1) ** 5x + dxA gasoline station gets its supply once a week. Suppose the PDF of X = demand in thousands of gallons for gasoline is: fx(x) = 5(1 – x)*I(0.1)(x) a. What is the probability that the demand for gasoline in a given week is more than 500 gallons? b. How much gasoline must the station get from its supplier in order for the probability that its supply will be exhausted in a given week shall be 0.01?
- Please answer all part : Let rt be a log return. Suppose that r0, r1, . . . are i.i.d. N(0, 0.01^2). (a) What is the distribution of rt(8) = rt + rt−1 + rt−2 +...+ rt−7? (b) What is the covariance between r7(3) and r9(3)? (c) What is the conditional distribution r17(3) given that r16 =0.004 (d) What is the probability that the gross return over the first 10 times periods is at least 1.05?K12 K12 K12 OLS Login My Info < Back to Content learning.k12.com/d21/le/enhancedSequenceViewer/1735455?url=https%3A%2F%2Fe02711f5-1353-40b6-af9b-349f7ff846bd.sequences.api.brightspace. = K12 Customer Supp... What is XY? Terms Use WORKED EXAMPLES Try the Segment Addition Postulate Point Y is on XZ. YZ - 5.2 and XZ = 12.5. Newrow Support Z Enter your answer in the box. A Newrow Tech Check Worked Examples: Try the Segment Addition Postulate 27 LogMeln123 hp Office 365 Minecraft Educatio... 1 2 3 A 112 Help Me Spee Check Answ NextBelow are the prices of Amazon stock "y" over a period of 5 days, the number of shares (in 100s) of company's stocks sold (x1), and the volume of exchange (in millions) (x2) is shown below. Day "y" (x1) (x2) 87.5 950 11 2 86 945 11.25 3 84 940 11.75 4 83 930 12.5 84.5 935 12 6 87 970 13 7 85 960 14 Run a regression and use the output to answer the following: 1. Provide an equation that can be used to predict the price of the stock Y = x1 x2 2. The + explains if the equation is a good predictor for price of the stock 3. What is the value for question #2 % (Round to the second (2nd) decimal place) 4. At 95% confidence, determine which variable(s) are significant 5. If in a given day, the trading volume of exchange was 16 million and the volume sold was 945,000, what would you expect the price of the stock to be? $ (Round to the second (2nd) decimal place)