SOLUTION: X Y A 24 31 B 13 66 2. What is P(X)? 3. What is P(X or Y)? 4. What is P(X or A)? 5. What is P(X|A)?

Algebra ->  Probability-and-statistics -> SOLUTION: X Y A 24 31 B 13 66 2. What is P(X)? 3. What is P(X or Y)? 4. What is P(X or A)? 5. What is P(X|A)?      Log On


   

Question 926817: X Y
A 24 31
B 13 66
2. What is P(X)?
3. What is P(X or Y)?
4. What is P(X or A)?
5. What is P(X|A)?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

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