Use the following probability distribution for Questions 1 - 7. p(x,y) x 0 1 2 y 0 0.3 0.18 0.12 1 0.05 0.03 0.02 2 0.025 0.015 0.01 3 0.025 0.015 0.01 4 0.1 0.06 B Question 1: Find P( X =1 and Y =1) 0.2 0.12 0.3 0.03
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x P(x) 0 0.1 1 0.3 2 0.05 3 0.55 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places. x P(x) 0 0.3 1 0.15 2 0.05 3 0.5 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places. Probability Scores 0.3 0 0.3 5 0.05 7 0.05 9 0.25 13 0.05 14 Find the expected value of the above random variable.
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