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Homework #8 - Joint Distributions, Covariance, and Correlation

This homework covers material on non-parameteric statistics in chapters 17 (specifically 17.2-17.4).  The homework assigmnment also covers material on joint probability distributions, covariance and correlation (chapters 6).  The materials in those sections imply the following skills as being important: 

1. Joint Discrete Distribution:  Describe what is meant by a joint distribution using everyday language.   Interpret the mathetmatical notation for joint distributions.  Calculate probability statements for joing distributions.      
2. Multinomial Distribution: Recognize situations consistent with a multinomial distribution.  Solve problems involving the multinomial distribution.
3. Correlation and Covariance:  Describe these concepts using everyday language.  Calculate measures of covariane and correlation for given data.  

Assignment

1.  Joint Distributions: Discrete

6-1, 6-2, 6-3, 6-4, 6-17: 

Note:  All of these problems concern the same random variable and probability distribution.

2.  Multinomial Distribution

6-32 and 6-33

3.  Covariance and Correlation

6-63: basic calculations
6-65: defining pdf to have a specified covariance properties
6-67: covariance and correlation for multinomial

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