(10 point) Fungsi massa probabilitas gabungan dari X dan Y, p(x, y), seperti pada data berikut ini: p(1, 1) = p(2,1) = ½, p(3, 1) = ½, p(1,2) = p(2,2) = 0, p(3,2) = 1, p(1, 3) = 0, p(2,3) = ½, p(3, 3) = Hitung E[XY = i] untuk setiap i = 1, 2, 3
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The joint
Calculate E[X|Y = i] for each i = 1, 2, 3
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- Consider a set of data (x;, y;), i = 1,2, .,n and an intercept model given by: 1. Yi = Bo + Ei with E(s;) = 0, Var(ɛ;) = o? and all ɛ,'s are independent and normally distributed. Derive the standard error of the point estimator Bo.3. Variation of Parameters у" — 2у' + у etSuppose that we have two independent data sets from the same process. One was collected in the past and another was collected recently. The observations are: {(r;; Yi), i = 1, n1} and {(r;, Yi), i = n1 + 1, .. , n1 + n2}. The two models are postulated to be 2. Yi ao + a1x; + Ei, i = 1, . . , n1, %3D = Bo + B1x; + Ei; i = n1 +1,,n, where n = nị + n2. a) Express these separate models as a single model in matrix form. b) Find A and c for testing Ho : a1 =
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- zy Section 1.7 - MAT 240: Applie X Ô https://learn.zybooks.com/zybook/MAT-240-J4373-OL-TRAD-UG.22EW4/chapter/1/section/7 A Q fa IS My library > MAT 240; Applied Statistics home > 1.7: Box plots zyBooks calalog 2 Help/TAQ 9 Lashonda CHALLENGE 1.7.1. Box plots and five-number summary ACTIVITY 3876741891676.q3zgy? Jump to level 1 The following box plot represents a sample of house prices. House prices ($1000s) 160 Find and interpret the third quartile Q3. 155 Ex: 19000 : 150 Pick 145 140 Find and interpret the interquartile range (IQR). 135 Pick 130 125 120 Check Next 7:18 e here to search (57) 73°F 4/18 PriSc Insert Delete F10 F11 F12 F8 Num Backspace Lock 3 4. 5 6 7 8. E Y Home H. K Enter V B N M Shift All D- D. D.The data shown below are from the same patients, measured before and after doses of insulin in 12pregnant women with diabetes:a) Analyse these data fully to assess whether the doses of insulin different for ‘dose at thestart’ and ‘dose at the end’ for these pregnant women with diabetes?b) Write a brief summary of what the result show.z 4, X G m1 chip - Google Search É 13-inch MacBook Pro - Space X A acconline.austincc.edu/webapps/assessment/take/launch.jsp?course_assessment id=_756751_1&course_id=_846... ent * Question Completion Status: Researchers wanted to know the effectiveness of a new anti-venom. A study was conducted on 150 children who had nonlethal scorpion stings. The ages of the children ranged from 6 months to 18 years old. Each child was randomly assigned to receive a shot of the anti-venom or a placebo shot. Researchers recorded whether or not their condition improved over the next four hours. a. Complete the two-way table summarizing the findings. Anti-venom Placebo Total 70 80 Improved Did not improve 60 Total 150 b. Use the study results to complete the following. Round your answer to the nearest tenth of a percent, as needed. Of the children who were given the anti-venom 96 saw their condition improve. Of the children who were given the placebo 96 saw their condition improve. Save All Answers Sa…
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