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Evaluate (a+b)2 for a=-3 and b--7?
1 answer:
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Answer:
99.96%
Step-by-step explanation:
Given the information:
- 5 teachers
- 20 students
- 4 people in committee
=> the are 25 people in total
Hence, the total possible outcomes of all the members in the 4 committee:
They want us to find the probability that the committee will consist of at least one student, which means that
=(Total possible outcome - committee with no student) / Total possible outcomes
So we need to find the possible outcomes of committee with no student:
=
=> the probability that the committee will consist of at least one student.
= (12650 - 5) / 12650
= 0.9996
= 99.96%
Hope it will find you well.