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