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