3 years ago

In a class of 7, there are 3 students who have done their homework.

1 answer:

5 0

Answer:

4/35

Step-by-step explanation:

Probability of 1 student having no hw is 4/7, then 3/6, then 2/5

4/7 x 3/6 x 2/5 reduces to 4/35

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