(b) An ultrasonic pulse velocity test is used to examine the quality of finished concrete. It is known that 5% of the fi

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(b) An ultrasonic pulse velocity test is used to examine the quality of finished concrete. It is known that 5% of the fi

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B An Ultrasonic Pulse Velocity Test Is Used To Examine The Quality Of Finished Concrete It Is Known That 5 Of The Fi 1
B An Ultrasonic Pulse Velocity Test Is Used To Examine The Quality Of Finished Concrete It Is Known That 5 Of The Fi 1 (75.33 KiB) Viewed 149 times
(b) An ultrasonic pulse velocity test is used to examine the quality of finished concrete. It is known that 5% of the finished concrete are sub-standard (i.e. voided concrete). Extensive research on this test reveals that its results are correct 98% of the time. In other words, whether or not the finished concrete is sub-standard, the probability of giving a correct detection result is 0.98. (1) A concrete specimen was selected for the test and was detected to be sub-standard. Determine the probability that the specimen was not actually sub-standard. (5 marks)
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