A sample of 20 specimens of soil was tested under shear, and water absorption tests. 8 of them failed in shear test, while 5 was failed in water absorption test and 2 failed in both. Find the following probabilities if a random sample is selected? 15 1-Failed in one of them at least? 2-Failed in one of them at most? 3-1f it is failed in shear to be failed in absorption? 4-lf it is good in absorption to be bad in shear?
A sample of 20 specimens of soil was tested under shear, and water absorption tests. 8 of them failed in shear test, while 5 was failed in water absorption test and 2 failed in both. Find the following probabilities if a random sample is selected? 15 1-Failed in one of them at least? 2-Failed in one of them at most? 3-1f it is failed in shear to be failed in absorption? 4-lf it is good in absorption to be bad in shear?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:A sample of 20 specimenS of soil was tested under shear, and water absorption tests.
8 of them failed in shear test, while 5 was failed in water absorption test and 2 failed
in both. Find the following probabilities if a random sample is selected?
1-Failed in one of them at least?
2-Failed in one of them at most?
3-If it is failed in shear to be failed in absorption?
4-lf it is good in absorption to be bad in shear?
15
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