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Probability (12.1-12.4) Flashcards | StudBud
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Probability (12.1-12.4)
Probability (12.1-12.4)
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Probability questions for statistics class. #probability
Flashcards
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Questions
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Answers
1
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.
2
Two coins are tossed. What is the probability of getting two heads, P(HH)?
1/2
1/4
1
0
3
What is the odds of rolling a 7 when you roll one standard die one time?
0
5/6
1/6
3/6
4
An event with a probability of 0.1 ...
is very likely to occur.
cannot occur.
is certain to occur.
is not very likely to occur.
5
If an event is
certain to occur
, it has a probability of zero.
False
True
6
A women has three sons. What is the probability that her next child will be a girl?
0
1/2
1/8
1/4
7
If the probability of an event happening is ¼, then the probability of it not happening is ¾.
True
False
8
What is the probability of randomly choosing a vowel (a,e,i,o,u) from the English alphabet?
None of these.
1/21
21/26
5/26
9
Given a bag with 12 red and 7 green marbles, what is the odds of randomly selecting a
red
one?
7/12
1/2
7/19
12/19
10
What is the probability that you draw a
diamond
from a well-shuffled deck of cards?
1/2
1/13
1/4
0
11
What is experimental probability?
The probability based on what should happen.
The probability based on what has happened?
12
What is the probability that a number less than 7 will appear when you roll a die one time?
1
1/6
0
1/2
13
What is theoretical probability?
The probability based on what has happened.
The probability that should happen.
14
If an event is
impossible
, it has a probability of zero.
True
False
15
What are independent events?
Events where the probabilities ARE related.
Events where the probabilities ARE NOT related.
16
What is the probability that you draw an
ace
from a well-shuffled deck?
1/13
1/2
0
1/4
17
You roll a fair six-sided die once. What is the probability of getting an
even number
?
1/6
1/2
1/3
0
18
On a single roll of a standard die, what is the probability that a 3 will NOT appear?
1/6
5/6
0
3/6
19
What are dependent events?
Events where the probabilities ARE NOT related.
Events where the probabilities ARE related.
20
Two dice are rolled. What is the probability that the sum is 12?
1/36
1/12
0
1/6
21
What is the probability that you draw the
ace of diamonds
from the deck?
1/4
0
1/13
1/52
22
If I toss a fair coin twice and get TT, what is the probability that tails appears next toss?
1/2
0
2/3
1
23
What is the probability of rolling a number
greater than 4
?
1/3
0
1/2
1
