Retries
the Following Table Contains the Probability Distribution for X

question 89

Multiple Choice

Retries
The following table contains the probability distribution for X = the number of retries necessary to successfully transmit a 1024K data package through a double satellite media.
$$\begin{array} { | c | c c c c | } \hline \boldsymbol { x } & 0 & 1 & 2 & 3 \\\hline \boldsymbol { p } ( \boldsymbol { x } ) & 0.35 & 0.35 & 0.25 & 0.05 \\\hline\end{array}$$
-The covariance of two variables X and Y:

• A) must be between -1 and +1.
• B) must be positive.
• C) can be any real number.
• D) None of these choices.

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