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Two questions are attached below. Please provide me with a step by step answer key. 

  • Attachment 1
  • Attachment 2
a) P(X = 0) = 1/10 + 1/10 + 2/10 = 0.4b) P(X=1) = 2/10 + 1/10 + 0 = 0.3P(X = 0) = 0.4P(X = -1) = 1/10 + 0 + 2/10 = 0.3Expected value of X = 1 * 0.3 + 0 * 0.4 * (-1) * 0.3 = 0c) P(Y = 2) = 1/10...
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