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Probability
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Probability questions for statistics class. #probability
Flashcards
30 cards
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Questions
30
Answers
1
Two events are independent if the occurrence of one doesn't affect the probability of the other
True
False
2
On a single roll of a standard die, what is the probability that a 3 will NOT appear?
5/6
1/6
0
3/6
3
Convert 13/50 to a percent?
26%
32%
50%
42%
4
What is the theoretical probability that you draw a
red
card from a shuffled deck of cards?
0
1/13
1/2
1/4
5
What is the probability that you draw the
ace of diamonds
from the deck?
1/4
1/52
1/13
0
6
What is the probability that a number less than 7 will appear when you roll a die one time?
0
1/6
1/2
1
7
Two dice are rolled. What is the probability that the sum is 12?
1/12
1/6
1/36
0
8
You roll a fair six-sided die once. What is the probability of getting an
even number
?
1/2
1/3
1/6
0
9
Which of the following experiments does
NOT have equally likely outcomes
?
Toss a coin.
Choose a number at random from 1 to 7.
Choose a letter at random from the word SCHOOL.
10
What is theoretical probability?
The probability that should happen.
The probability based on what has happened.
11
Convert 4/5 to a percent?
90%
75%
80%
95%
12
If I toss a fair coin twice and get TT, what is the probability that tails appears next toss?
2/3
0
1/2
1
13
A women has three sons. What is the probability that her next child will be a girl?
1/8
0
1/4
1/2
14
Convert 4/25 to a percent?
16%
20%
18%
10%
15
Given a bag with 12 red and 7 green marbles, what is the odds of randomly selecting a
red
one?
7/12
1/2
12/19
7/19
16
An event with a probability of 0.1 ...
is certain to occur.
is very likely to occur.
is not very likely to occur.
cannot occur.
17
What is the odds of rolling a 7 when you roll one standard die one time?
1/6
5/6
3/6
0
18
Convert 12/20 to a percent?
72%
36%
60%
55%
19
What is the probability of randomly choosing a vowel (a,e,i,o,u) from the English alphabet?
1/21
None of these.
5/26
21/26
20
Two coins are tossed. What is the probability of getting two heads, P(HH)?
0
1/2
1
1/4
21
Convert 92/100 to a percent?
95%
92%
50%
75%
22
What is the probability that you draw a
diamond
from a well-shuffled deck of cards?
1/13
1/2
1/4
0
23
If an event is
impossible
, it has a probability of zero.
True
False
24
If an event is
certain to occur
, it has a probability of zero.
True
False
25
On a single roll of a standard die, what is the probability that an odd number will appear?
3/6
1
0
1/6
26
What is the probability of rolling a number
greater than 4
?
0
1/2
1/3
1
27
If I toss a fair coin, what is the probability that tails appears?
None of the these
1
1/2
0
28
If the probability of an event happening is ¼, then the probability of it not happening is ¾.
True
False
29
What is the symbol for the empty set?
Ω
⊂
∩
∅
30
What is the probability that you draw an
ace
from a well-shuffled deck?
1/13
0
1/4
1/2
