A6 - Tossing a coin twice
HEAD
TAIL
A dirham is tossed.
You will get
H
or
T
It is tossed again.
You will get
H
or
T
What combinations are possible?
…. ….
….
….
….
….
….
….
1. What is the probability you will get two heads?
2. What is the probability you will get two tails?
3. What is the probability you will get a head and then a tail?
4. What is the probability you will get a tail and then a head?
5. What is the probability you will get a head and a tail (the order does not matter)?
6. What is the probability you will get at least one head?
006e LVV FWC MATH NO2M LO5 S1
You can also list the outcomes with a tree diagram:
Practice
A mother is planning to have two children, boy (B) or a girl (G).
Create a probability tree of all the possible outcomes.
6. What is the probability the mother will get two boys?
7. What is the probability the mother will get two girls?
8. What is the probability the mother will get a boy first and then a girl?
9. What is the probability the mother will get a girl and a boy (the order does not
matter)?
10. What is the probability the mother will have at least one girl?
006e LVV FWC MATH NO2M LO5 S1