Question

The sum of the probabilities of all events of a trial is
(a) 1
(b) greater than 1
(c) less than 1
(d) between 0 and 1

Answer 1

Answer:

a) 1

Step-by-step explanation:

example:

If we take a set S={1,2,3,4,5,6} , we need get a natural number from the set.

we have six possible ways to get a natural number.

That means Favourable outcomes= 6,

Total number of outcomes = 6

Then Probability (P)= No. of favorable outcomes

Total number of outcomes

= 6

6

=1