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Probability
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Probability questions for statistics class. #probability
Flashcards
26 cards
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Questions
26
Answers
1
What is the probability of rolling a number
greater than 4
?
0
1/3
1/2
1
2
What is the probability of rolling a number less than 7 on a number cube?
0
1/6
1
1/2
3
What is theoretical probability?
The probability based on what has happened.
The probability that should happen.
4
What are independent events?
Events where the probabilities ARE NOT related.
Events where the probabilities ARE related.
5
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
6
If an event is
certain to occur
, it has a probability of zero.
False
True
7
What is the probability that you draw the
ace of diamonds
from the deck?
1/4
1/13
0
1/52
8
If an event is
impossible
, it has a probability of zero.
False
True
9
You roll a number cube once. What is the probability of getting an
even number
?
1/2
0
1/3
1/6
10
On a single roll of a standard die, what is the probability that an odd number will appear?
1
0
3/6
1/6
11
What are dependent events?
Events where the probabilities ARE related.
Events where the probabilities ARE NOT related.
12
An event with a probability of 0.1 ...
cannot occur.
is not very likely to occur.
is certain to occur.
is very likely to occur.
13
What is sample space, S?
The area where samples are.
The favorable outcomes of an event.
The total possible outcomes of an event.
14
If I toss a fair coin, what is the probability that tails appears?
0
1
1/2
None of the these
15
What is experimental probability?
The probability based on what should happen.
The probability based on what has happened?
16
What is the odds of rolling a 7 when you roll one number cube?
1/6
5/6
3/6
0
17
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.
18
What is the probability that you draw an
ace
from a well-shuffled deck?
1/2
0
1/13
1/4
19
On a single roll of a standard die, what is the probability that a 3 will NOT appear?
0
3/6
5/6
1/6
20
A women has three sons. What is the probability that her next child will be a girl?
1/4
0
1/8
1/2
21
Two events are independent if the occurrence of one doesn't affect the probability of the other
False
True
22
If the probability of an event happening is ¼, then the probability of it not happening is ¾.
False
True
23
Two coins are tossed. What is the probability of getting two heads, P(HH)?
1/2
0
1/4
1
24
What is the theoretical probability that you draw a
red
card from a shuffled deck of cards?
1/4
0
1/13
1/2
25
What is the probability that you draw a
diamond
from a well-shuffled deck of cards?
0
1/2
1/4
1/13
26
Given a bag with 12 red and 7 green marbles, what is the odds of randomly selecting a
red
one?
1/2
7/19
7/12
12/19
