Posted by **Nabiha** on Saturday, December 3, 2011 at 8:17pm.

A sixth form class consists of 6 girls and 9 boys. Three students from the class are chosen at random. The number of boys chosen is denoted by the random variable X. Show that

a)P(X=0)=120/2730

b)P(X=2)=1296/2730

## Answer this Question

## Related Questions

- statistics - A class has 100 students, 70 of which are boys. 70% of the boys are...
- math - A student is chosen at random from a class of 10 boys and 20 girls. What ...
- Math - a class has 10 boys and 5 girls; three students are selected from the ...
- Math 132 - There are 7 girls and 6 boys in a class. Suppose five children are ...
- STATISTICS - a team of 3 is to be chosen from 4 boys and 5 girls. if X is the ...
- statistic - The random variable x represents the number of boys in a family with...
- math - 2 students are chosen at random from a group of 120 students that has 60 ...
- math - There are 27 students in Mrs. Reeds class. The number of boys and number...
- algebra - Classes A and B have 35 students each. If seven girls shift from class...
- algebra - Classes A and B have 35 students each. If seven girls shift from class...