for 1 die, find: (a) P (roll a "7") (b) P (roll a "multiple of 3")
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
ChapterCSR: Contents Of Student Resources
Section: Chapter Questions
Problem 6.6P
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for 1 die, find:
(a) P (roll a "7")
(b) P (roll a "multiple of 3")
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
Step 1
a.finding the probability that the die comes up value 7:
It is given that die is rolled one time.
When a six sided die is rolled one time, the probability of each outcome is 1/6.
The sample space when a die is rolled is {1,2,3,4,5,6} and all outcomes are equally likely.
The sample space does not contain the value 7. Thus, the probability of rolling a 7 is 0.
In other words, the probability that the die comes up value 7 is obtained as follows:
![P(Event) Total mumber of favourable cases
Total number of cases
P(Rolling a 7)
6
=0](https://content.bartleby.com/qna-images/answer/9bf1d13c-e79a-4624-ad68-14b1bdf5decd/d8399b53-bed9-4396-ae20-7878a2177b79/5iq9gdh.png)
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