Answer:
P(B/A)≠P(B)
Step-by-step explanation:
We are given that A and B are two events and P(B/A) is the given probability notation for conditional probability.
For independence of two events with conditional probability the two events are said to be independent if
P(B/A)=P(B)
This equation can be derived from the definition of conditional probability.
P(B/A)=P(A∩B)/P(A)
If two events are independent then P(A∩B)=P(A)*P(B), substituting this in the above equation
P(B/A)=P(A)*P(B)/P(A)
P(B/A)=P(A).
So, if two events are not independent then the notation of probability is
P(B/A)≠P(B)
Answer:
Given - Twice a no. is 42 less than 5 times a no.
To find - The no.
Solution -
<h3>Let the no. be X </h3>
According to the question the equation made is -
2x = 5x - 42
2x - 5x = (-42)
(-3x) = (-42)
x= (-42)/(-3)
x = 14
The no. is 14