Tuesday
April 21, 2015

Homework Help: statistics

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

First Name:
School Subject:
Answer:

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...

Members