SOLUTION: Consider the venn diagram below. Then numbers in the regions of the circle indicate the number of items that belong to that region. THE CIRCLE A=40 THE CIRCLE B=80 AND THE SHARED

Algebra ->  Probability-and-statistics -> SOLUTION: Consider the venn diagram below. Then numbers in the regions of the circle indicate the number of items that belong to that region. THE CIRCLE A=40 THE CIRCLE B=80 AND THE SHARED      Log On


   



Question 462364: Consider the venn diagram below. Then numbers in the regions of the circle indicate the number of items that belong to that region.
THE CIRCLE A=40 THE CIRCLE B=80 AND THE SHARED REGION IS 10.
DETERMINE:
n(a)
n(b)
p(a)
p(b)
p(a/b)
p(b/a)
(the slash between the letters is meant to be a strait line.
THANK YOU ALL AGAIN FOR ALL OF YOUR HELP!

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
P(a)=40/(30+10+70)=4/11
P(b)=80/110=8/11
P(a|b)=10/80=1/8 Note: The "|" mark is on most computer keyboards. On mine it is above the "\" next to the square and curly brackets.
P(b|a)=10/40=1/4
I am not familiar with what n(a) and n(b) mean.
.
Ed