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OpenStudy (bloomlocke367):
Suppose Q and R are independent events. Find P(Q and R).
P(Q)=0.41 P(R)=0.44
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OpenStudy (bloomlocke367):
@rafrasan
OpenStudy (anonymous):
I do not understand it and I have to go soon, sorry :(
OpenStudy (bloomlocke367):
Okay...
OpenStudy (bloomlocke367):
@iambatman
OpenStudy (bloomlocke367):
@myininaya
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OpenStudy (bloomlocke367):
@saynabahmed13
OpenStudy (anonymous):
I can help
OpenStudy (bloomlocke367):
Okay, good :) what exactly is it asking me to do?
OpenStudy (anonymous):
Find P(Q and R)
OpenStudy (anonymous):
multiply the probabilities, (.41)(.44)
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OpenStudy (bloomlocke367):
so I just multiply the two?
OpenStudy (bloomlocke367):
0.1804?
OpenStudy (anonymous):
yup
OpenStudy (bloomlocke367):
why?
OpenStudy (anonymous):
thats are answer
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OpenStudy (anonymous):
because you multiply P(Q)=0.41 P(R)=0.44
OpenStudy (bloomlocke367):
but why do you multiply them?
OpenStudy (bloomlocke367):
@saynabahmed13
OpenStudy (anonymous):
(1) P (Q and R) = P(Q) x P(R) = 0.41 x 0.44 = 0.1804 [answer b]
(2) P (S or T) = P(S) + P(T) = 8/9 + 1/10 = 80/90 + 9/90 = 89/90 [answer a]
(3) P (S or T) = P(S) + P(T) = 6/11 + 1/10 = 60/110 + 11/110 = 71/110 [answer c]
OpenStudy (anonymous):
@BloomLocke367
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OpenStudy (anonymous):
there is and explanation
OpenStudy (bloomlocke367):
ohhh, okay. can you help with another?
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