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K.Binks

  • one year ago

This table shows the probability distribution of scores on the 2010 AP Statistics exam. Use the distribution to calculate the expected score of a randomly-selected score. Round the answer to the nearest tenth. x p(x) 5 0.128 4 0.224 3 0.235 2 0.182 1 0.231

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  1. kropot72
    • one year ago
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    \[\large E(X)=\sum_{}^{}xp(x)\] \[\large =1\times0.231+2\times0.182+3\times0.235+4\times0.224+5\times0.128=?\]

  2. kropot72
    • one year ago
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    @K.Binks Are you there?

  3. K.Binks
    • one year ago
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    I'm sorry! Didn't see your post. Could you explain this to me?

  4. K.Binks
    • one year ago
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    nvrmd I got it

  5. kropot72
    • one year ago
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    You can calculate it on a reasonably good calculator. What is your result?

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