QN01. The value of Var(3 - 4X) is: 5120 / 9 1280 / 81 5120 / 81 1280 / 9 Answer(C)5120 / 81 QN02. A multiple-choice test has 30 questions. There are 4 choices for each question. A student who has not studied for the test decides to answer all the questions randomly by guessing…
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