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