00:01
Okay, so our problem is turned to which number could be represented as the probability.
00:10
So the basic concept we need to know is that the probability is always greater or equal than 0 and smaller or equal than 1.
00:19
So this is the basic concept that we need to follow.
00:22
Now let's look at those numbers.
00:24
So for the first question, okay, part a is 303 .3%.
00:32
And we know that this one, so it's definitely smaller than 1 and it's greater than 0.
00:46
So we understand that this is okay, so we can use this number as a probability.
00:53
So the second part is negative 1 .5.
00:58
So it's obvious that negative 1 .5 is smaller than 0.
01:03
So it violates the basic concept we need to follow.
01:08
Those rules that we need to follow...