What does p(b/a) = 0.50 mean in terms of the venn diagram?

Other options C. is the correct answer

Of the 4 people who have a sister, 2 of these also have a brother.  

Step-by-step explanation:

P(B|A)=P(A∩B)P(A)

It is given that P(B|A)= 0.5

From the given ven diagram,

A consists of {Davis, Kari, Chu, Evan}

B consists of {Adam,Bucci,Lyle,Chu,Evan}

A ∩ B = {Chu,Evan}

Possible outcomes of A =4

possible out comes of B = 5

possible out comes A ∩ B = 2

P(B|A)=P(A∩B)P(A) = 2/4 = 1/2 =0.5

It means that, Of the 4 people who have a sister, 2 of these also have a brother.  

Other options C. is the correct answer

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: