Question

if p (A):p(not A) =5:3 then p (A)=

Answer 1

Step-by-step explanation:

GIVEN :-

P( A ) : P( Ā ) = 5 : 3

TO FIND :-

Value of P( A )

SOLUTION :-

ACCORDING TO THE QUESTION

pa:pa^_=5:3

pa +pa_=1

pa_=pa-1

SO PUT THE VALUE OF P( Ā )

NOW AFTER RECIPROCAL OF THE EQUATIONS

OTHER INFORMATION :-

Probability: It is the numerical measurement of the degree of certainty.

Theoretical probability associated with an event E is defined as “If there are ‘n’ elementary events associated with a random experiment and m of these are favourable to the event E then the probability of occurrence of an event is defined by P(E) as the ratio m/n

If P(E) = 1, then it is called a ‘Certain Event’.

If P(E) = 0, then it is called an ‘Impossible Event’.

The probability of an event E is a number P(E) such that: 0 ≤ P(E) ≤ 1

An event having only one outcome is called an elementary event. The sum of the probabilities of all the elementary events of an experiment is 1.

Favourable outcomes are those outcomes in the sample space that are favourable to the occurrence of an event