Boys and girls

There are 11 boys and 18 girls in the classroom. Three pupils will answer. What is the probability that two boys will be among them?

Correct answer:

p =  27.09 %

Step-by-step explanation:

n=11+18=29  C2(3)=(23)=2!(32)!3!=13=3  p0=(23) n11 n110 n218=3 2911 29110 29218=203550.2709  p=100 p0=100 0.2709=2035500%=27.09%



Did you find an error or inaccuracy? Feel free to write us. Thank you!



Showing 3 comments:
Math student
Answer is not accurate.correct answer is .2679076632908277

Math student
THE ANSWER SHOULDN'T BE ACCURATE IF THE DECIMALS ARE LONG! OKAY?

Math student
Yeah! It's just rounded





Tips for related online calculators

Related math problems and questions: