statistics
posted by sophia .
Given the ensuing well drilling data, answer the following.
• .30 (30%) probability of a productive well absent test information
• Predrilling ballistics test ‘s affirmative result correctly predicts a productive well .70 of the time
• Predrilling ballistics test’s negative result correctly predicts a nonproductive well .80 of the time
9.1 Probability of a productive well given an affirmative ballistics test
9.2 Probability of a nonproductive well given a negative ballistics test
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