Question

if p(a)=x/3 and p(abar)=2/5 then find x​

Answer 1

Step-by-step explanation:

Given:-

P(a)=x/3 and P(a bar)=2/5

To find:-

if P(a)=x/3 and P(a bar)=2/5 then ffindthe value of x?

Solution:-

Given that :

P(a) = x/3

P(a bar) = 2/5

We know that

Sum of all probabilities of an event is always equal to 1

=>P(a) + P(a bar) = 1

=>(x/3) + (2/5) = 1

=>x/3 = 1-(2/5)

=>x/3 = (5-2)/5

=>x/3 = 3/5

=>x=(3/5)×3

=>x=(3×3)/5

=>x=9/5

The value of x = 9/5

Answer:-

The value of x for the given problem is 9/5

Used formulae:-

• Probability of an event a occuring is denoted by P(a).
• Probability of an event a not occuring is denoted by P(a bar).
• The sum of all probabilities of an event is always equal to 1.
• P(a) + P(a bar) = 1.
• Probability is developed by Peirre Simon Lapace.