REALLY NEED HELP: The Venn Diagram shows a universe with 26 elements and two different outcomes: B and Y

Find the following probability and write your answer as a decimal:

P(B|Y) = a0

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ColinJacobus ColinJacobus · Answer 1 · 2018-11-02T20:59:30+01:00

Answer:

P(B|Y)=0.4

Step-by-step explanation:

We are given with a Venn diagram of a universe with 26 elements and two different outcomes: B and Y

And we are asked to find P(B|Y)

The formula for P(B|Y)= [tex]\frac{P(B\cap Y)}{P(Y)}[/tex]

From Venn diagram, [tex]P(B\cap Y)=\frac{n(B\cap Y)}{26} =\frac{8}{26} =\frac{4}{13}[/tex]

And P(Y)=[tex]\frac{n(Y)}{26}=\frac{8+12}{26}= \frac{20}{26}= \frac{10}{13}[/tex]

Hence P(B|Y)=[tex]\frac{(\frac{4}{13})}{\frac{10}{13}} =\frac{4}{10}=0.4[/tex]

alinakincsem alinakincsem · Answer 2 · 2018-11-02T22:38:19+01:00

Answer:

P(B|Y) = 4/10

Step-by-step explanation:

We have 26 elements in total in a universe with two different outcomes B and Y, as shown in the Venn diagram.

We are to find the probability P(B|Y) and we are given the probabilities of B and Y. We need to use following formula to find P(B|Y):

P(B|Y) = P(B∩Y) / P(Y)

P(B∩Y) = 8/26 = 4/13; and

P(Y) = (12+8)/26 = 20/26 = 10/13

So substituting the values in the formula to get:

P(B|Y) = (4/13) / (10/13)

P(B|Y) = (4/13) x (13/10)

P(B|Y) = 4/10