This document discusses probability and the likelihood of events occurring. It explains that the probability of a sure event is 1, an impossible event is 0, and a possible event is between 0 and 1. It provides examples of calculating probabilities for outcomes of tossing a coin, where the probability of heads or tails is 1/2, and throwing a single dice, where the probability of any number is 1/6.

1. By: Ann Joseph 9C

2. Impossible Possible Maybe
A probability is a number that reflects the chance
or likelihood that a particular event will occur.

3. Probability of sure event is 1
Probability of impossible event is 0
Probability 0 < P(E) < 1
P(E) + P(E) = 1

5. HEART
DIAMOND
CLUB
SPADE

6. TOSSING A COIN
Whenacoinistossed,thereare2possible
outcomes
HEADANDTAIL
ProbabilityofcoinlandingH=1/2
ProbabilityofcoinlandingT=1/2

7. Whenasinglediceisthrowntherearesix
possibleoutcomes.
1,2,3,4,5,6
Probabilityofoneofthemis 1/6