probablity theory?

Question

types of event,combination,permutation,theorms of probablity,bayes theorm

Answer 1

random event: the result of any single repitition of a random experiment is called as random event or simple event or elementary event.

the list of all elementary events in a trail is called list of exhaustive events.

a combination of elementary events in a trial is called as an event.

probability:
if tehre are n exhastive equally likely events in a trial and m of tehm are favorable to event A,then m/n is called the probabbility of A.its denoted by P(A)

bayes therem:
if A1,A2....An are mutually exclusive and exhaustive events in a sample space S such that P(Ai)>0 for i =1,2,3......... and E is any event with P(E)>0 then,
P(A/E) = P(Ak) P(E/Ak)/ sigma P(Ai)P(E/Ai) for k=1,2,......

an arrangement that can be formed by taking some or all of a finite set of things is called as a permutation.

A selection that can be formed by taking some or all of a finite set of things is called a combination..

hope this helps..

Answer 2

The theory of probability was first developed by a French mathematician and physicist named Blaise Pascal who lived back in the 1600's.

Answer 3

chances of happening of an event

say you toss a coin then what is the chances of getting head or tale . 50:50

if you toss it 100 times it will be 50 head and 50 tales.

try it

Answer 4

you can check in 11th std book
or go to link
http://en.wikipedia.org/wiki/Probability_theory

Answer 5

Try this link

http://en.wikipedia.org/wiki/Probability_theory