Grandchildren 83113

The grandfather bought 10 rubbers for 10 grandchildren. In the bag were 3 blue, 2 green and the rest red. Hansel would like blue gum. What is the probability that Janek will draw a blue rubber if 2 cousins have already drawn it before him and drawn blue and green?

Correct answer:

p =  0.25

Step-by-step explanation:

n=10 m=3 z=2 c=nmz=1032=5  p=n2m1=10231=0.25



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







Tips for related online calculators
Would you like to compute the count of combinations?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: