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Joint probability

  1. Apr 22, 2004 #1
    If the values of the joint probability density of Y1 and Y2 are as shown:

    0 1 2 total

    0 1/12 1/6 1/24 35/120
    1 1/4 1/4 1/40 63/120
    2 1/8 1/20 ...... 21/120
    3 1/120 ...... ..... 1/20
    ttl 56/120 56/120 8/120 1

    whew ;-)

    ok Find

    a) P (Y1=0)
    b) P(Y2=1 | Y1=1)
    c P(Y2=1)
    e Check if Y1 and Y2 are independent or dependent
    f Evaluate the correlation coefficient r of y1 and y2

    Thanks so much
     
  2. jcsd
  3. Apr 23, 2004 #2

    matt grime

    User Avatar
    Science Advisor
    Homework Helper

    erm, evidently you just want us to do your homework not explain any maths. there's a homework section for that. my advice? use the formula
     
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