Answer:A
Step-by-step explanation:
A is the correct anwers cause you divied you demonitar plus 10 then subtract and you get a equal
Answer:
C.y=3|x| and A. 4<x<=5
Step-by-step explanation:
Answer:
Infinite solutions
Step-by-step explanation:
all real answers or infinte solutions
Answer:
110 degrees
Step-by-step explanation:
140-30=110
Answer:
0.4 = 40% of this group likes chocolate
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
![P(B|A) = \frac{P(A \cap B)}{P(A)}](https://tex.z-dn.net/?f=P%28B%7CA%29%20%3D%20%5Cfrac%7BP%28A%20%5Ccap%20B%29%7D%7BP%28A%29%7D)
In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this questions:
Event A: Likes sprinkles
Event B: Likes chocolate.
20% of your friends like sprinkles (S) topping.
This means that ![P(A) = 0.2](https://tex.z-dn.net/?f=P%28A%29%20%3D%200.2)
8% of your friends like Chocolate (C) and also like sprinkles (S).
This means that ![P(A \cap B) = 0.08](https://tex.z-dn.net/?f=P%28A%20%5Ccap%20B%29%20%3D%200.08)
Of the friends who like sprinkles, what proportion of this group likes chocolate?
![P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.08}{0.2} = 0.4](https://tex.z-dn.net/?f=P%28B%7CA%29%20%3D%20%5Cfrac%7BP%28A%20%5Ccap%20B%29%7D%7BP%28A%29%7D%20%3D%20%5Cfrac%7B0.08%7D%7B0.2%7D%20%3D%200.4)
0.4 = 40% of this group likes chocolate