Maths
>
A-Level
>
Probability
>
What is a ...
3 years ago
·
27 Replies
·
4296 views
Christiana Schimmel
27 Answers
P(A and B)= P(A)xP(B)
An Excellent Maths & Physics Teacher who is also an Examiner.
12 reviews
P(A and B) = P(A) * P(B)
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.Two events are independent if the probability of happening both of the event at the same time is just the product of the indivial probability of those two events. If you have mulitple events thatare independent then just multiply all of them out. Now there is a catch that some might be dependent and some might not. And things get more interesting when you get into the domain of stochastic processes.
Experienced Maths Teacher (16 yrs) & Examiner for 2 Major Exam Boards
29 reviews
Yes P(A Intersection B) = P(A) x P(B)
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.Events A and B are independent if P(A|B) = P(A). In other words, whether or not B happens has no effect on the probability of A happening. P(A∩B) = P(A) x P(B). That is, the probability of both A and B happening is the product of their individual probabilities
Hi Christiana!
The formula is P(A intersection B) = P(A)*P(B), where P(A) is the probability of A happening, P(B) is the probability of B happening and P(A intersection B) is the probability of both events happening at the same time.
Hope this helps.
Mathematics PhD Researcher with a Passion for Teaching Science & Maths
If A and B are two independent events, then the probability of their intersection is equal to the product of the probabilities of each event, that is, P(A n B) = P(A) x P(B)
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.Maths, Further Maths, Physics, Chemistry, Science, PAT, MAT, STEP
P(A and B) = P(A) * P(B)
P(A and B) means the probability of A and B both occurring is called a compound event.
P(A) means the probability of A occurring.
P(B) means the probability of B occurring.
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.Independent events are defined as events where their probabilities won't affect each other. Therefore one formula for independent events is P(A and B) = P(A)P(B)
the generalised formula for independent events for events A and B is
P(A) x P(B)= P(A intersection B)
Intersection symbol looks like n
Experienced GCSE and A level Maths teacher with 500 hours online
There are 2 ways to test for independence
1) P( AnB) = P(A) x P(B)
2) P( A/B) = P(A)
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.A sought after tutor with an impeccable record of success
An event A is said to be independent of another event B if the probability of occurrence of one of them is not affected by the occurrence of the other.
Mathematically, we can say the events A and B are independent if P(A and B) = P(A) x P(B)
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.Qualified maths teacher with 2 years KS3/4 classroom experience
P(A and B) = P(A) x P(B)
where A and B are independent events
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.P (A and B) = P(A) x P(B)
AND implies to intersection of both said events. If there are more than two events you can add it to the above formula sequentially e.g,
P( A,B and C) = P(A) x P(B) x P(C)
Very experienced A-level Maths & Further Maths teacher
9 reviews
There are two formulae to be familiar with concerning independence; the one is a consequence of the other.
I'm available for 1:1 private online tuition!
Click here to view my profile and arrange a free introduction.Think you can help?
Get started with a free online introductions with an experienced and qualified online tutor on Sherpa.
Find an A-Level Maths Tutor