Pick any point and then plug the domain and range into x (domain value) and y (range value).
Answer:
5/26.
If you count y as a vowel it is 3/13
Step-by-step explanation:
Answer:
8/-5
Step-by-step explanation:
Flip the numerator and the denominator.
P(B|A) means "the probability of B given A", which in turn means: how likely is B, if we are guaranteed that A is true?
In your case, this means: if you already know that the person has a sister, how likely it is that the same person also has a brother?
if you look the diagram, you see that 4 people has a sister: Davis, Kari, Chu, Evan. Out of these 4 people, 2 of them also have a brother.
This explains P(B|A)=0.5: half of the people with a sister also have a brother.
For this case we have the following expression:
1 / z = (4/5) / (8)
Rewriting we have:
1 / z = 4/40
1 / z = 1/10
Clearing the value of z we have:
z = 10
Answer:
The value of z for this case is given by:
z = 10