If the possible values for x are 1, 2, 3 with probabilities .2, .6 and .2, respectively,
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If the possible values for x are 1, 2, 3 with probabilities .2, .6 and .2, respectively, what is the mean and standard deviation?
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Related Book For 
Basic Statistics Understanding Conventional Methods And Modern Insights
ISBN: 9780195315103
1st Edition
Authors: Rand R. Wilcox
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