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