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  • 3 years ago

if 400 draws are made at random with replacement from 5 tickets that are marked -2, -1, 0, 1, and 2 respectively. Find the expected value of: a).number of times positive numbers appear b).the sum of all the numbers drawn c).the sum of the positive numbers drawn

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  1. Khlara
    • 3 years ago
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    a)160 b)0 c)240

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