Thursday

April 24, 2014

April 24, 2014

Posted by **David** on Tuesday, February 24, 2009 at 2:56pm.

Thank you!

- Probability/Statistics -
**drwls**, Tuesday, February 24, 2009 at 4:02pmThe answer is Prob(A) + Prob(B) - Prob (A + B)= 0.6 + 0.3 - 0.18 = 0.72

The last term avoids double counting of the occurence of both A and B, which satisfied the "A or B" criterion only once.

The answer is certainly not 0.3, since 60% of the events are A and satisfy the A or B requirement

**Related Questions**

math-Probability - Let E and F be events such that the following is true. Pr (E...

math probability - Assume that Pr[E]=0.55,Pr[F]=0.55,Pr[G]=0.55,Pr[E∪F]=0....

College Finite Math - Suppose for this problem that Pr[E]=13/24 and Pr[F]=5/8 ...

math - weekly demand data have been analyzed yielding the probability mass fnc. ...

Math! - In the equation A=p+prt, t is equilvalent to... (1)A-pr (3)A - p ...

algebra - This is a response to bobpursley's answer of Pr(0) = .3; Pr(1) = 7*.3...

math - An experiment consists of rolling a weighted die. The probability of ...

MATH - Given Pr(a)= 0.9, Pr(C|A)= 0.78 and Pr(D|B) = 0.38. find a. (A|C) = b. (A...

computer science - calculate the steady state probability of source emitting a "...

statistics - In the U.S. 42% of the population has type A blood. Consider taking...