SOLUTION: A student has to choose an elective class for the last semester of high school. His counselor suggested 8 electives, 5 of which were dance classes. If the student randomly chose t

Algebra.Com
Question 1160955: A student has to choose an elective class for the last semester of high school. His counselor suggested 8 electives, 5 of which were dance classes.
If the student randomly chose to read about 4 of the electives, what is the probability that all of them are dance classes?
Write your answer as a decimal rounded to four decimal places.

Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
When you read several things, you always read them in a certain order, so:

The probability that the 1st one the student read was a dance class is 5/8.
The probability that the 2nd one the student read was a dance class is 4/7.
The probability that the 3rd one the student read was a dance class is 3/6.
The probability that the 4th one the student read was a dance class is 2/5.



Edwin

RELATED QUESTIONS

A student has to choose an elective class for the last semester of high school. Her... (answered by ikleyn,math_tutor2020)
A high school student needs 9 more classes to graduate. If she has met the prerequisites (answered by Alan3354)
First year students at a particular college must take one English class, one class in... (answered by Fombitz)
Every year, students have to decide which four classes to take each semester. They must... (answered by Boreal)
An English class can choose from 6 books to read this semester. How many different ways... (answered by checkley77)
In how many ways can a student 3 course from 8 electives and 5 core classes if elective... (answered by stanbon)
Of the students in a class, are taking the class because it is a major requirement, and (answered by greenestamps)
In a high school year book, there is a picture of each pair of students in the graduating (answered by solver91311)
Next school year, 4 out of every 9 students plan to take an elective computer course. If... (answered by rfer)