Need help specifically on b, c, and d 4.1. A stock trader purchases 100 shares of BTC, and 200 shares of DOGE. Assume B is the integer price change of BTc and D is the integer price change of DOGE...

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Extracted text: Need help specifically on b, c, and d 4.1. A stock trader purchases 100 shares of BTC, and 200 shares of DOGE. Assume B is the integer price change of BTc and D is the integer price change of DOGE over a certain time period, and that the joint PMF of B & D is UNIFORM when constrained by the following formulas, and 0 otherwise: -2 sbs4 AND -1sd-bs1 a) Show the tabular (table) form of the Joint PMF for B and D. b) Find the marginal PMFS for the Random Variables B and D. c) Find the Expected Values for the two RVs. d) Find the Expected Value of overall profit for the stock trader.