
you are taking the following test: 




Grade: 8, Subject: Math, Topic: Probability and Statistics Combination and Permutations






Question 7: 
There are three balls; red, green and yellow. Which of the following represents all possible combinations of two balls? 

 red, green
green, yellow   red, green
red, yellow
green, yellow 

 red, green
green, red
red, yellow
yellow, red
green, yellow
yellow, green   red, green
green, red
red, yellow
yellow, red 
Question 8: 
There are three balls; red, green and yellow. Which of the following represents all possible pernumations of two balls? 

 red, green
green, yellow   red, green
red, yellow
green, yellow 

 red, green
green, red
red, yellow
yellow, red
green, yellow
yellow, green   red, green
green, red
red, yellow
yellow, red 


