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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 that a number less than 7 will appear when you roll a die one time?
1/2
1/6
1
0
2
A women has three sons. What is the probability that her next child will be a girl?
1/4
1/8
1/2
0
3
On a single roll of a standard die, what is the probability that a 3 will NOT appear?
5/6
3/6
0
1/6
4
What is the probability of flipping heads twice?
1
0
1/4
1/2
5
Two events are independent if the occurrence of one doesn't affect the probability of the other
False
True
6
What is the probability of randomly choosing a vowel (a,e,i,o,u) from the English alphabet?
5/26
None of these.
1/21
21/26
7
What is the probability of rolling a number
greater than 4
?
1/2
1
0
1/3
8
What are dependent events?
Events where the probabilities ARE related.
Events where the probabilities ARE NOT related.
9
What are independent events?
Events where the probabilities ARE related.
Events where the probabilities ARE NOT related.
10
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
11
On a single roll of a standard die, what is the probability that an odd number will appear?
1
1/6
0
3/6
12
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.
13
If an event is
certain to occur
, it has a probability of zero.
False
True
14
You roll a fair six-sided die once. What is the probability of getting an
even number
?
1/3
1/2
1/6
0
15
If I toss a fair coin, what is the probability that tails appears?
None of the these
1
1/2
0
16
What is the theoretical probability that you draw a
red
card from a shuffled deck of cards?
1/2
1/13
1/4
0
17
What is the probability that you draw a
diamond
from a well-shuffled deck of cards?
1/4
1/13
0
1/2
18
Two coins are tossed. What is the probability of getting two heads, P(HH)?
1/4
1
1/2
0
19
What is the odds of rolling a 7 when you roll one standard die one time?
3/6
1/6
5/6
0
20
What is the probability that you draw an
ace
from a well-shuffled deck?
0
1/13
1/4
1/2
21
If an event is
impossible
, it has a probability of zero.
False
True
22
What is theoretical probability?
The probability based on what has happened.
The probability that should happen.
23
If the probability of an event happening is ¼, then the probability of it not happening is ¾.
True
False
24
Two dice are rolled. What is the probability that the sum is 12?
1/6
0
1/36
1/12
25
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.
26
What is the probability that you draw the
ace of diamonds
from the deck?
1/52
0
1/13
1/4
