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