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Tpy6a [65]
3 years ago
14

There are eight students in a class. Only one of them has passed Exam P/1 and only one of them has passed Exam FM/2. No student

has passed more than one exam. What is the probability that exactly three students from a randomly chosen group of four students have not passed Exam P/1 or Exam FM/2?
Mathematics
1 answer:
Svetach [21]3 years ago
4 0

Answer: There is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.

Step-by-step explanation:

Total number of students = 8

Number of student who has passed Exam P/1 = 1

Number of student who has passed Exam FM/2 = 1

No student has passed more than one exam.

According to question, exactly three students from a randomly chose group of four students have not passed Exam P/1 or Exam FM/2.

So, Probability will be

\frac{^6C_3\times ^2C_1}{^8C_4}\\\\=\frac{20\times 2}{70}\\\\=\frac{4}{7}\\\\=0.57

Hence, there is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.

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