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Pulsified333
 one year ago
involving sets E and F. Suppose for this problem that Pr[E]=1/2, Pr[F]=5/16, and Pr[E∩F′]=1/4.
(1) What is Pr[EF]?
(2) What is Pr[FE]?
Pulsified333
 one year ago
involving sets E and F. Suppose for this problem that Pr[E]=1/2, Pr[F]=5/16, and Pr[E∩F′]=1/4. (1) What is Pr[EF]? (2) What is Pr[FE]?

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misty1212
 one year ago
Best ResponseYou've already chosen the best response.1must be some typo here does it really say \[P(E)=12\]??

Pulsified333
 one year ago
Best ResponseYou've already chosen the best response.0sorry i forgot to fix the fractions

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1or is that maybe \[P(E)=\frac{1}{2}\]?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1oh nvm i see they are fixed

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1in any case \[P(AB)=\frac{P(A\cap B)}{P(B)}\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1so \[P(EF)=\frac{P(E\cap F)}{P(F)}\] how have those numbers

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1l meant "you" have those numbers

Pulsified333
 one year ago
Best ResponseYou've already chosen the best response.0we don't have P(E∩F)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1looks like you wrote it was \(\frac{1}{4}\)

Pulsified333
 one year ago
Best ResponseYou've already chosen the best response.0that is Pr[E∩F′]=1/4.

Pulsified333
 one year ago
Best ResponseYou've already chosen the best response.0not the same thing as P(E∩F)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442890782534:dw

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1you can find \[P(E\cap F)\] by subtracting \[P(E\cap F')\] from \(P(E)\)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1can you see it in the picture?

Pulsified333
 one year ago
Best ResponseYou've already chosen the best response.0so you are saying its 1/4

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442891040553:dwdw:1442891076272:dw

Pulsified333
 one year ago
Best ResponseYou've already chosen the best response.0so its (1/4)/(5/16)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1yeah in your case it is \(\frac{1}{4}\)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1and yes, your answer is right (after you do the math)

Pulsified333
 one year ago
Best ResponseYou've already chosen the best response.0and then #2 is 1/2

Pulsified333
 one year ago
Best ResponseYou've already chosen the best response.0thank you :D can you help me on another one?
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