in Probability
235 views
0 votes
0 votes
Suppose 3 batteries are choosen at random from a group of 3 new and 4 used but still working and 5 ddefective batteries what is the probability of choosing 3 defective batteries?

why is(5C3)/(12C3 ) the correct answer and (5*4*3)/(12C3) not the correct answer??
in Probability
235 views

Please log in or register to answer this question.

Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true