girlrace1 girlrace1

09-02-2021
Mathematics

contestada

There are 9 students ain class 2 boys 7 girls and a teacher picks 4 at random what is the probability in the group that everyone is a girl

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alexandrahidalgo81 alexandrahidalgo81

09-02-2021

Answer:

2/3.

Step-by-step explanation:

Ok, so at first, the probability of the teacher picking a girl is 7/9. And then when she takes one girl, it is less, so the probability is 6/8. Then if she picks 2 more girls, then the probability of that would be 4/6, or 2/3.

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