Hi

always recommend completing table with Totals:

         X      Y      Tot

A    24     31      55

B    13     66      79

Tot  37     97     134

.........

P(X) = 37/134

What is P(X or Y) = 1

P(X or A) = 55/134

P(X|A) = 24/134 

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Please can you help with this

Use the following contingency table to answer
      x    (answered by ewatrrr)

       X      Y      Tot

A    24     31      55

B    13     66      79

Tot  37    (answered by ewatrrr)

         X      Y      Tot

A    24     31      55

B    13     66      79

Tot  37  (answered by stanbon)

x          1      2      3      4     5
P(X = x) 0.12   0.25   0.38   0.17   ???

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