Posted by **sophia** on Thursday, October 25, 2007 at 8:10pm.

Given the ensuing well drilling data, answer the following.

• .30 (30%) probability of a productive well absent test information

• Pre-drilling ballistics test ‘s affirmative result correctly predicts a productive well .70 of the time

• Pre-drilling ballistics test’s negative result correctly predicts a non-productive well .80 of the time

9.1 Probability of a productive well given an affirmative ballistics test

9.2 Probability of a non-productive well given a negative ballistics test

- statistics -
**drwls**, Thursday, October 25, 2007 at 8:19pm
No data is presented

- statistics -
**sophia**, Thursday, October 25, 2007 at 8:24pm
oops, thank you drwls

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