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anonymous

  • one year ago

using the probabilty distribution table what is the value of p(x=4 or x=1)? x 0 1 2 3 4 5 p 0.3 00.5 0.1 0.15 0.15 0.25 p(x=4 or x=1)=1

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  1. steve816
    • one year ago
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    0.5+0.15

  2. amistre64
    • one year ago
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    the probability of a given random variable, is: x p(x)

  3. amistre64
    • one year ago
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    but then, it seems like your table is a little off ... since the sum of: x P(x) is not 1, but 3.

  4. anonymous
    • one year ago
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    wait so it 0.65 the answer or

  5. anonymous
    • one year ago
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    \[\begin{array}{c|cccccc} x&0&1&2&3&4&5&\\ \hline p(x)&0.3&\color{red}{0.05}&0.1&0.15&0.15&0.25 \end{array}\] @amistre64 For any probability distribution, we have to have \(\sum\limits_{x}p(x)=1\), not the sum of \(xp(x)\) (you're thinking of expected value, which need not be 1). And yeah, it's 0.65.

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