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Duplicate of Probability
Duplicate of Probability
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Probability questions for statistics class. #probability
Flashcards
34 cards
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Questions
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Answers
1
You roll a fair six-sided die once. What is the probability of getting an
even number
?
1/6
0
1/2
1/3
2
If the probability of an event happening is ¼, then the probability of it not happening is ¾.
True
False
3
What is sample space, S?
The area where samples are.
The total possible outcomes of an event.
The favorable outcomes of an event.
4
Two dice are rolled. What is the probability that the sum is 12?
1/36
1/12
1/6
0
5
A women has three sons. What is the probability that her next child will be a girl?
0
1/4
1/2
1/8
6
If I toss a fair coin twice and get TT, what is the probability that tails appears next toss?
2/3
0
1/2
1
7
What is the probability of the empty set, P(∅)?
1
0
1/2
3/4
8
What are independent events?
Events where the probabilities ARE NOT related.
Events where the probabilities ARE related.
9
The area shaded in green is which of the following?
None of these.
A ∪ B
The complement of A
A ∩ B
10
If an event is
certain to occur
, it has a probability of:
-1.0
1.0
0.0
0.5
11
What is the probability that you draw a
diamond
from a well-shuffled deck of cards?
1/4
0
1/2
1/13
12
What is the probability that you draw the
ace of diamonds
from the deck?
1/4
1/52
0
1/13
13
What is the probability that a number less than 7 will appear when you roll a die one time?
1
1/2
1/6
0
14
What are dependent events?
Events where the probabilities ARE NOT related.
Events where the probabilities ARE related.
15
What is the probability of the set that contains all possible outcomes, P(Ω)?
3/4
1
1/2
0
16
On a single roll of a standard die, what is the probability that a 3 will NOT appear?
5/6
0
3/6
1/6
17
An event with a probability of 0.1 ...
is not very likely to occur.
cannot occur.
is very likely to occur.
is certain to occur.
18
Given a bag with 12 red and 7 green marbles, what is the odds of randomly selecting a
red
one?
7/12
7/19
1/2
12/19
19
What is the odds of rolling a 7 when you roll one standard die one time?
5/6
1/6
0
3/6
20
What is theoretical probability?
The probability based on what has happened.
The probability that should happen.
21
On a single roll of a standard die, what is the probability that an odd number will appear?
0
1
3/6
1/6
22
The area shaded in green is which of the following?
None of these.
A ∪ B
The complement of A
A ∩ B
23
What is the probability that you draw an
ace
from a well-shuffled deck?
0
1/13
1/4
1/2
24
What is the theoretical probability that you draw a
red
card from a shuffled deck of cards?
1/4
0
1/13
1/2
25
Two coins are tossed. What is the probability of getting two heads, P(HH)?
1
0
1/2
1/4
26
What is the symbol for the empty set?
⊂
∅
Ω
∩
27
The area shaded in green is which of these?
A ∪ B
A ∩ B
None of these.
The complement of A
28
What is the probability of rolling a number
greater than 4
on a fair 6-sided die?
1/3
1/2
0
1
29
What is the probability of randomly choosing a vowel (a,e,i,o,u) from the English alphabet?
21/26
None of these.
1/21
5/26
30
If I toss a fair coin, what is the probability that tails appears?
1
0
1/2
None of the these
31
Two events are independent if the occurrence of one doesn't affect the probability of the other
False
True
32
Which of the following experiments does
NOT have equally likely outcomes
?
Choose a number at random from 1 to 7.
Choose a letter at random from the word SCHOOL.
Toss a coin.
Rolling a single die
33
If an event is
impossible
, it has a probability of it happening is:
0.0
1
-1.0
0.5
34
What is experimental probability?
The probability based on what should happen.
The probability based on what has happened?
