What is the greatest possible probability in any experiment?

*A. 9/10
B. 1
C.10
D.100

The chance of getting a red ball is obviously 6/6 which is 100%!

No offence, but if you cannot get that right, you haven't been paying attention in your lesson book!

Stealing your example here, oobleck.
Probability as a fraction:
number of Favourable outcomes (red balls)
-----------------------------------------
number of Possible outcomes (also red balls)
There are
6 red balls (favourable)
6 red balls (possible)
6/6
No matter what, you get a red ball.
when it is like this, it is definite. It's like 10/10, so the highest possible outcome for any experiment couldn't be 9/10!

BRO I NEED MORE INFO BEFORE I FAIL

The greatest possible probability in any experiment is 1, which is option B.

To understand why, it's important to know that probability measures the likelihood of an event occurring. It is always expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

In this case, option B states that the greatest possible probability is 1. This means that the event in question is guaranteed to occur. When the probability is 1, you can be certain that the event will happen.

really? What if it's a definite outcome?

Suppose a box has 6 red balls in it.
If you draw out a ball, what is the probability that is is red?

where did you get the 10?

There are only six balls. All of them are red!
So, what's the chance of getting a red ball?

6/10

Please make sure to reread your lesson carefully, or go to the Khan Academy website and search 'finding probability'.