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Duplicate of Probability
Duplicate of Probability
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Probability questions for statistics class. #probability
Flashcards
33 cards
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Questions
33
Answers
1
What is the symbol for the empty set?
∩
Ω
⊂
∅
2
Which of the following experiments does
NOT have equally likely outcomes
?
Toss a coin.
Choose a letter at random from the word SCHOOL.
Choose a number at random from 1 to 7.
3
If I toss a fair coin, what is the probability that tails appears?
0
1/2
None of the these
1
4
What are dependent events?
Events where the probabilities ARE NOT related.
Events where the probabilities ARE related.
5
What is the odds of rolling a 7 when you roll one standard die one time?
0
1/6
3/6
5/6
6
The area shaded in green is which of the following?
A ∩ B
A ∪ B
None of these.
The complement of A
7
On a single roll of a standard die, what is the probability that an odd number will appear?
0
3/6
1
1/6
8
The area shaded in green is which of these?
A ∪ B
The complement of A
A ∩ B
None of these.
9
Two events are independent if the occurrence of one doesn't affect the probability of the other
False
True
10
If an event is
impossible
, it has a probability of zero.
True
False
11
What is the probability that you draw a
diamond
from a well-shuffled deck of cards?
0
1/13
1/2
1/4
12
If the probability of an event happening is ¼, then the probability of it not happening is ¾.
False
True
13
What is theoretical probability?
The probability that should happen.
The probability based on what has happened.
14
What is the probability of rolling a number
greater than 4
?
1/3
0
1/2
1
15
What is the probability of the empty set, P(∅)?
0
3/4
1
1/2
16
An event with a probability of 0.1 ...
is very likely to occur.
cannot occur.
is not very likely to occur.
is certain to occur.
17
What is the theoretical probability that you draw a
red
card from a shuffled deck of cards?
0
1/13
1/4
1/2
18
A women has three sons. What is the probability that her next child will be a girl?
1/2
1/4
1/8
0
19
What is sample space, S?
The favorable outcomes of an event.
The total possible outcomes of an event.
The area where samples are.
20
The area shaded in green is which of the following?
A ∪ B
The complement of A
A ∩ B
None of these.
21
What is experimental probability?
The probability based on what has happened?
The probability based on what should happen.
22
If I toss a fair coin twice and get TT, what is the probability that tails appears next toss?
1
1/2
2/3
0
23
On a single roll of a standard die, what is the probability that a 3 will NOT appear?
0
1/6
3/6
5/6
24
What is the probability of the set that contains all possible outcomes, P(Ω)?
0
3/4
1
1/2
25
You roll a fair six-sided die once. What is the probability of getting an
even number
?
1/6
0
1/3
1/2
26
What is the probability that a number less than 7 will appear when you roll a die one time?
1
1/2
0
1/6
27
If an event is
certain to occur
, it has a probability of zero.
True
False
28
Two coins are tossed. What is the probability of getting two heads, P(HH)?
1/2
0
1
1/4
29
Given a bag with 12 red and 7 green marbles, what is the odds of randomly selecting a
red
one?
7/19
12/19
1/2
7/12
30
Two dice are rolled. What is the probability that the sum is 12?
1/36
1/6
1/12
0
31
What are independent events?
Events where the probabilities ARE related.
Events where the probabilities ARE NOT related.
32
What is the probability that you draw an
ace
from a well-shuffled deck?
0
1/13
1/2
1/4
33
What is the probability that you draw the
ace of diamonds
from the deck?
1/52
0
1/4
1/13
