Probability of an outcome given multiple attributes

  1. Hi,

    Lets say I have the following attributes...
    Body fat percentage, Body mass index
    Outcome = obese (yes / no)
    I have data for all attributes and outcomes. What I'd like to do is a joint probability. For example I'd like to know what the probability is of someone being obese given their BMI and body fat percentage.

    I can calculate the correlation between the attributes and the outcomes. My intuition tells me that I need to combine the correlation in some way, but can't seem to find any information on this.

    Can someone point me in the right direction?

    - Sid
     
  2. jcsd
  3. I don't know about joint probability, but I'd say something like this would do:
    P(being obese) = P(person with BMI x being obese) * P(person with Body Fat Percentage n being obese)

    http://en.wikipedia.org/wiki/Joint_probability_distribution
     
  4. EnumaElish

    EnumaElish 2,481
    Science Advisor
    Homework Helper

  5. Thanks for all the help. Will look in to all the links now and see which one suits my needs.

    - Sid
     
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