Question

Q3.If P(E)=2/5 and P( not E)=x/5 .Find the value of x .

Answer 1

Answer:

x = 3

Step-by-step explanation:

P(E) = 2/5

P(E’) = x/5

Since, P(E’) = 1 - P(E)

x/5 = 1 - 2/5

x/5 + 2/5 = 1

x+2 = 5

x = 3

Hope it helps you

Thank you

Answer 2

Answer:

x=3

Step-by-step explanation:

P(E)+P(E')=1

2/5 +x/5=1

(2+x)/5=1

2+x=5

x=3