Week 6 ilab

# Week 6 ilab - Week 6 ilab John Matias D03156412 Short...

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Week 6 ilab John Matias D03156412 Short Answer Writing Assignment All answers should be complete sentences. 1. When rolling a die, is this an example of a discrete or continuous random variable? Explain your reasoning. Discrete, because the possible values are the whole numbers from one thru six 2. Calculate the mean and standard deviation of the probability distribution created by rolling a die. Either show work or explain how your answer was calculated.

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Mean: 3.5_ Standard deviation: _1.73 Mean = Expected Value sum xP(x) x P(x) xP(x) 1 1/6 1/6 2 1/6 1/3 3 1/6 1/2 4 1/6 2/3 5 1/6 5/6 6 1/6 1 sum = 3 1/2 stan dev x x-u 1 2 3 4 5 6 sum = variance = stan dev =
3. Give the mean for the mean column of the Worksheet. Is this estimate centered about the parameter of interest (the parameter of interest is the answer for the mean in question 2)? mean of each column 3.45 3.65 3.80 3.65 3.75 3.30 3.85 3.50 3.25 average of the mean columns 3.56 centered around parameter of interest 4. Give the mean for the median column of the Worksheet. Is this estimate centered

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## This note was uploaded on 10/19/2011 for the course MATH 221 SUMMER taught by Professor Lipper during the Summer '11 term at DeVry NJ.

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Week 6 ilab - Week 6 ilab John Matias D03156412 Short...

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