Question

Let a and b be events on the same sample space, with p(a) = 0.6 and p(b) = 0.7. Can these two events be disjoint?

Answer 1

Answer:

Not a disjoint.

Step-by-step explanation:

For two events on the same sample space to be a disjoint, the sum of probabilities of them should be equal to 1.

In this case the probability of occurence of event a is p(a)= 0.6

The probability of occurence of event b is p(b)=0.7

The sum of both the events is p(a) + p(b)= 0.6+0.7= 1.3

As the sum is greater than 1 , the two events are not disjoint.