menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Tom rolls a number cube twice. What is the probability that the sum of the 2 rolls is less than 9 given that the first roll is a 6?
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
Tom rolls a number cube twice. What is the probability that the sum of the 2 rolls is less than 9 given that the first roll is a 6?
asked
Jun 16, 2017
106k
views
4
votes
Tom rolls a number cube twice. What is the probability that the sum of the 2 rolls is less than 9 given that the first roll is a 6?
Mathematics
high-school
Durisvk
asked
by
Durisvk
8.5k
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
6
votes
For the sum to be less than 9, sum of two rolls is 7 or 8.
Since the first roll is 6, the second roll will be 1 or 2
Proobability = 2/6^2 = 2/36 = 1/18
Harshil Raval
answered
Jun 19, 2017
by
Harshil Raval
7.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
1
vote
since the
that the first roll is a 6, so the second must be 1 or 2,
so p= 2/36=1/18
Vladimir Hraban
answered
Jun 21, 2017
by
Vladimir Hraban
7.7k
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
Other Questions
How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org