menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
A 12-sided die is rolled. the set of equally-likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12}. find the probability of rolling a 7 or a 10.
Ask a Question
Questions
Unanswered
Tags
Ask a Question
A 12-sided die is rolled. the set of equally-likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12}. find the probability of rolling a 7 or a 10.
asked
Aug 14, 2018
165k
views
0
votes
a 12-sided die is rolled. the set of equally-likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12}. find the probability of rolling a 7 or a 10.
Mathematics
college
Adamh
asked
by
Adamh
7.9k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
2
Answers
4
votes
P(A or B)=P(A)+P(B)
P(A)=1/12
P(B) =1/12
1/12 +1/12 = 2/12 =1/6
NKorotkov
answered
Aug 15, 2018
by
NKorotkov
8.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
4
votes
well if there are 12 outcomes and all are different lets think.
How many possibilities are there of rolling a 7?
Just one right? Right
What about 10 its the same thing so only 1 possibility.
So for rolling a 7 its 1/12= unlikely same with 10
so for rolling a 10 its 1/12= unlikely\
which then you do 1/12 +1/12 = 2/12
then if u want to simplify it's 1/6
therefore the answer is 1/6
hope this helped :)
Chemark
answered
Aug 19, 2018
by
Chemark
7.9k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
No related questions found
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org