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