A geological study indicates that an exploratory oil well should strike oil with probability .2. a What is the probability that the first strike comes on the third well drilled? b What is the probability that the third strike comes on the seventh well drilled? What assumptions did you make to obtain the answers to parts (a) and (b)?
A geological study indicates that an exploratory oil well should strike oil with probability .2. a What is the probability that the first strike comes on the third well drilled? b What is the probability that the third strike comes on the seventh well drilled? What assumptions did you make to obtain the answers to parts (a) and (b)?
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 7CC
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Question
![3.97
A geological study indicates that an exploratory oil well should strike oil with probability .2.
a
What is the probability that the first strike comes on the third well drilled?
b What is the probability that the third strike comes on the seventh well drilled?
What assumptions did you make to obtain the answers to parts (a) and (b)?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F763773a4-b59e-428b-8a3f-bc3dd5fb97d6%2Fdd6b63ac-8aec-4560-b554-5bf3a4dfb78f%2F16b5mbk_processed.png&w=3840&q=75)
Transcribed Image Text:3.97
A geological study indicates that an exploratory oil well should strike oil with probability .2.
a
What is the probability that the first strike comes on the third well drilled?
b What is the probability that the third strike comes on the seventh well drilled?
What assumptions did you make to obtain the answers to parts (a) and (b)?
Expert Solution
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Step 1
Here given geological study indicate that an exploratory oil well should strike oil with probability 0.2
p = 0.2
q = 1-p = 0.8
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