Question

How to read this symbol

Answer 1

How to read this symbol \(\Large P(E|F)\)

Answer 2

?

Answer 3

that is not fraction

Answer 4

i think that's the Probability of F given that the event E has occurred. Conditional probability

Answer 5

P of E such that F

Answer 6

this is related to this https://en.wikipedia.org/wiki/Conditional_probability

Answer 7

|=such that

Answer 8

- or have i got it the wrong way around??

Answer 9

i think u told the opposite

Answer 10

yes

Answer 11

it can be read as P of E such that of F

Answer 12

yes probability of E given F

Answer 13

\[P(A | B) = \text{Conditional probability of A given B}\\P(P\cap B)=\text{Probability of A and B (the intersection of A and B)}\\P(P\cup B)=\text{Probability of A or B (the union of A and B)}\]

Answer 14

oops those P's should be A's lol

Answer 15

\[P(A | B) = \text{Conditional probability of A given B}\\P(A\cap B)=\text{Probability of A and B (the intersection of A and B)}\\P(A\cup B)=\text{Probability of A or B (the union of A and B)}\]

Answer 16

lol

Answer 17

nice work man! :)

Answer 18

now that you know what \(P(A|B)\) means, see if you can solve below problem

Answer 19

A person is picked from the village at random.
Find the probability that the person is a man, given that the person is 70 years or older

Answer 20

i just started learning it . can't solve

Answer 21

sure you can, you don't really need to know that formula

you will discover that formula while solving the above problem

Answer 22

you're given that the person is 70 or older, so "only look at that column" :

Answer 23

how many are 70 or older ?

how many of them are men ?

Answer 24

5

Answer 25

70 old > 50 persons

Answer 26

there are 25 people that are 70 or older right ?

Answer 27

yes 25