The document is a presentation on probability that discusses: 1) How probabilities are expressed as fractions with the numerator being the possible outcomes of an event and the denominator being the total possible outcomes. 2) Examples of describing probability using terms like certain, likely, unlikely, and impossible. 3) Examples of calculating probability using a dice and coin toss, with the dice example having a 1/6 probability of rolling any single number and the coin toss a 1/2 probability of getting heads.

1. Daffodil
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2. Presentation
by
Labib Hossain(221-35-979)

3. Our Topic
Probability

4. Probability
If P(A) = 1, then the event is
certain to occur.
If P(A) = 0, then the
event cannot occur.

5. How do we express probabilities?
1.Usually, we express probabilities as fractions.
2.The numerator shows the POSSIBLE number of ways an
event can occur.
3.The denominator is the TOTAL number of possible
events that could occure.

6. P(E)= Probability of an event
When, P(E) =0, An event that is uncertain to happen
P(E) =1, An event that is certain to happen
Formula:
P(E)= POSSIBLE number of ways an event can
occur/TOTAL number of possible events

7. How do we describe probability?
.You can describe the probability of an event with
the following terms:
1.certain (the event is definitely going to happen)
likely (the event will probably happen, but not
definitely)
2.unlikely (the event will probably not happen,
but it might)
3.impossible (the event is definitely not going to
happen).

8. Example of Dice
Probability(1/6)
for each number 1-6
1=Each number on a dice :(1,2,3,4,5,6)
6=Total number of sides
P(3/6)or>(1/3)
Probability of
Even Numbers:
Probability of ODD
numbers:
P(1/3)or>(1/3)

9. Example of Dice
 When a coin is tossed, there are two possible
outcomes: Heads and Tails P(Heads) = ½

10. Thank you