CHANCE AND PROBABILITY
CHANCE AND PROBABILITY
Random events
Probability of an event
Laplace's Law
Exam
Vocabulary
The end
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Exam
Exam
1. If we roll a die, which of the following events is the certain event?
a) Obtain a number lower than 6
b) Obtain a number greater than 1
c) Obtain a one digit number
d) Obtain a letter
2. If we roll a die, which of the following events is the impossible event?
a) Obtain a number greater than 6
b) Obtain a number lower than 1
c) Obtain a one digit number
d) Obtain a letter
3. If we roll a die, which of the following events is more likely?
a) Obtain an even number
b) Obtain a number lower than or equal to 4
c) Obtain 1 or 6
d) Obtain an odd number
4. If we roll a die, what is the probability of the event a={obtain an even number}?
a) P(A)=1/3
b) P(A)=1/2
c) P(A)=2/6
d) None of them
5.If we flip two coins, what of the following events is more unlikely?
a) Obtain two heads
b) Obtain at least one tail
c) Obtain exactly one head
d) Obtain a head or a tail
6. If we flip two coins, what is the probability of the event A={two tails}?
a) P(A)=1/3
b) P(A)=1/2
c) P(A)=1/4
d) P(A)=2/4
7. If we flip two coins, what is the probability of the event A={at least one head}?
a) P(A)=1/3
b) P(A)=2/3
c) P(A)=1/2
d) PA)=3/4
8. If we flip two coins, what is the probability of the event A={exactly one head}?
a) P(A)=3/4
b) P(A)=1/2
c) P(A)=2/3
d) None of them
9.If we roll two dices, what is the probability of the event A={the addition is 10}?
a) P(A)=2/21
b) P(A)=1/12
c) P(A)=2/36
d) P(A)=1/18
10. If we roll two dices, what is the probability of the event A={at least a 2}?
a) P(A)=11/36
b) P(A)=6/36
c) P(A)=12/36
d) P(A)=10/36
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