Mathematics, 24.10.2019 20:43 dubose8872
In an exam, there is a problem that 60% of students know the correct answer. however, there is 15% chance that a student picked the wrong answer even if he/she knows the right answer. and there is also a 25% chance that a student does not know the right answer but guessed it correctly. a. what is the probability that a student knows the right answer and gets it right? b. what is the probability a student doesn’t know the right answer and gets it right?
Answers: 1
Mathematics, 21.06.2019 18:30
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Upstream: 1.04 = x – y downstream: 2.08 = x + y aro can paddle at a speed of miles per hour. the river’s speed is miles per hour.
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In an exam, there is a problem that 60% of students know the correct answer. however, there is 15% c...
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