Friday
October 24, 2014

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

Math 132 - There are 7 girls and 6 boys in a class. Suppose five children are ...
math - A student is chosen at random from a class of 10 boys and 20 girls. What ...
math - There are 27 students in Mrs. Reeds class. The number of boys and number...
Math - a class has 10 boys and 5 girls; three students are selected from the ...
math - There are 24 students in Mr.Hills class. The number of boys and number of...
math - 8) A high school graduating class is made up of 445 students. There are ...
math - In a class of 80 seniors, there are 3 boys for every 5 girls. In the ...
Maths - There are 40 pupils in a class. There are 10 more boys than girls. When ...
Math - The ratio of the number of boys to the number of girls in Mr. Brown's ...
Math - Mrs.Smith's class has 12 girls and 8 boys. What percent of he class are ...

Search
Members