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There are 4 cards numbered 1,3,5,7...one …

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There are 4 cards numbered 1,3,5,7...one number on one card. Two cards are drawn at random without replacement.Let X denote the sum of thee numbers on the two drawn cards.Find the mean and variance of X.

    • Posted by Priya Malhotra 7 years, 9 months ago

    CBSE > Class 12 > Mathematics
    • 0 answers
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