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