DazireS718781 DazireS718781

30-10-2022
Mathematics

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What is the probability that a randomly selected student will earn a 91 - 100 given they study for two to three hours?

What is the probability that a randomly selected student will earn a 91 100 given they study for two to three hours class=

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CharismaE344864 CharismaE344864

30-10-2022

Explanation

Let the probability that those who earn 91-100 be Pr(A) and the probability that those who studied for 2-3 hours be Pr(B)

[tex]Pr(A|B)=\frac{Pr(A\cap B)}{Pr(B)}=\frac{22}{45}[/tex]

Answer: 22/45 or 49.9%

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