Question

If P (E)=1/4 then find the probability of not E

Answer 1

Answer:

3/4

Step-by-step explanation:

P(E) = 1/4

total probability of all events = 1

probality of one eveny happening + probability of that event not happening = 1

probability of any event always lies between 0 & 1 both included.

so

if P(E) = 1/4

P(E) + p(not E) = 1

so

p (not E) = 1 - p (E)

p (not E) = 1 - 1/4

p (not E) = (1/4)*(4-1)

p (not E) = (1/4)*3

p (not E) = 3/4

Answer 2

Answer: P(E)+P(Not E) = 1

Therefore

P(Not E) = 1 - P(E)

====> 1 - 1/4

====> 3/4.

Step-by-step explanation: