Calculate xpectation and variance of X, if the probability distribution of the random variable X is given by X - 1 0.3 0 0.1 I 0.1 2 3 0.3 0.2
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A: The answer is attached below,
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Q: 95 confidence level sample 25 randomly selected mean test score of 81.5 standard deviation 10.2
A: Given Mean =81.5 Standard deviations=10.2 Sample =25
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Q: Question no. 42 Suppose that [1/4 1/2 1/4 P= a 0 1-a
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Q: a) How many ways are there to do this?
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A: Answer:
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A: There are 3 red balls, 2 green balls and 1 blue ball.
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Q: A bus arrives every 25 minutes at a bus stop. It is assumed that the waiting time for a particular…
A: The bus arrives every 25 minutes at a bus stop.
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