4. A geological study indicates that an exploratory oil well should strike oil with probability of 0.2. What is the probability that A. the first strike comes on the third well drilled? B. the third strike comes on the seventh well drilled? C. What assumptions did you make to obtain the answers to parts A and B? D. Find the mean and variant of the number of wells that must be drilled if the company wants to set up three producing wells.

4. A geological study indicates that an exploratory oil well should strike oil with probability of 0.2. What is the probability that A. the first strike comes on the third well drilled? B. the third strike comes on the seventh well drilled? C. What assumptions did you make to obtain the answers to parts A and B? D. Find the mean and variant of the number of wells that must be drilled if the company wants to set up three producing wells.

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

See similar textbooks