# s1 vien diagramWatch

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#1
Can someone show me how to put this info on a vien diagram

The events A and B are such that P(A) = 2/5, P(B) = 1/2 and P(A/B') = 4/5.

a) Find

i) P(A n B)

ii)P (a u b)

iii) P(a u b)

iv) P(a\b)

Thanks
0
14 years ago
#2
P(A/B') = P(AnB')/P(B') = 4/5
since P(B') = 1/2, P(AnB') = 2/5

This can now be put onto a venn diagram - events are mutually exclusive because you were told P(A) = 2/5 so none of A intersects with B
0
14 years ago
#3
(Original post by Bebop)
Can someone show me how to put this info on a vien diagram

The events A and B are such that P(A) = 2/5, P(B) = 1/2 and P(A|B') = 4/5.

a) Find

i) P(A n B)

ii)P (a u b)

iii) P(a u b)

iv) P(a|b)

Thanks
i) Mutually exclusive by proving that P(AnB') = P(A) therefore = 0
ii) 2/5 + 4/5 = 9/10
iv) (since iii) is the same) because P(AnB) = 0 answer = 0

[IMG]http://groups.msn.com/_Secure/0SQAAAKQWDlbO*jGD9Te2vLVrOSvsZ3K TEyagKffJdiON7thdjcQszffWYgYaYon qDCx7KP5Ha6KiML6IkWBvA0NWNk3wVm* W3M9N6zZgr!UUET9BvLKW7Q/untitled4.JPG?dc=467547591308158 5052[/IMG]
0
14 years ago
#4
so if they are mutually exclusive and there is no AnB what do you put in that middle bit of the venn diagram? do you put zero or do you keep the circles seperate?
0
14 years ago
#5
keep them separate
0
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