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diamong [38]
3 years ago
14

A small class has 10 students, 3 of whom are girls and 7 of whom are boys. The teacher is going to choose two of the students at

random. What is the probability that the teacher will choose two boys? Write your answer as a fraction in simplest form.
Mathematics
2 answers:
iren2701 [21]3 years ago
5 0
The probability that the teacher will choose a boy at random the first time is 7/10. After the first boy is picked, that leaves 9 people remaining, 3 girls and 6 boys, giving us a chance that a boy will be picked 6/9, or 2/3 of the time. We can multiply these fractions to give us the final chance two boys will be picked. 7/10 x 2/3 = 7/15 in simplest form.  The teacher will choose two boys 7/15 of the time.
ss7ja [257]3 years ago
3 0
Hi! Your answer is 7/15. Hoped I helped!
-Dawn
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