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  1. #1
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    Post conditional probability

    Hello,
    I have a list of products and for each product corresponds an RCA index as shown in the attached table.
    I would like to calculate for both products i and j the following conditional probability:
    Pr[RCA(i)>= 1 | RCA(j)>= 1 ]
    But I have not found a statistical method to calculate this probability.
    I hope you can help me.
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  2. #2
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    Re: conditional probability

    hi,
    just filter the column j for RCA ==1 and count the proportion of 1s in column i.

    regards

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    gammoudi (03-09-2017)

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    Re: conditional probability

    i and j are in the same column, they refers to products (product i and j) and for each product i I would like to calculate the indicated probability for each products i and j:
    Product………………….RCA
    0101 ……………………..3,63
    0106……………………… 0,006
    0206……………………… 0,09
    0207 ……………………..1,03

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    Re: conditional probability

    It isn't clear what the problem actually is.
    P(RCA(i)>1) is either 0 or 1 for any given i, depending what the value of RCA(i) is. It isn't dependent on the value of any other RCA. (This assumes that i and j are not the same and if they are, the probability = 1.)

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    gammoudi (03-09-2017)

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