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NCERT part2 , page no. 582 …

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NCERT part2 , page no. 582 , Example 37 Why P( A | B1 ) = 0.9 X 0.9 ? It should be 0.9 only . Anyone please explain.

    • Posted by Rahul Ranjan 7 years, 10 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Ritu Gupta 7 years, 10 months ago

    Because here is 2 acceptable items. Probability of one acceptable item is 0.9 . So we multiply it twice. It is confusing for you but think, multiplying it once is the case when we have given only one acceptable item

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