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Question 1
Select the correct statement about combination.
A. You can make multiple combinations of larger number (i.e. 5) of balls from a group of smaller number (i.e. 3) of balls.B. You can make multiple combinations of smaller number (i.e. 3) of balls from a group of larger number (i.e. 5) of balls.
C. You can make 2 combinations using one ball.D. You can make only one combination using two ball.
Question 2
Which of the following is not a common notation used to represent combination?
A. C(n,r)B. nCr
C. nrCD. nCr
Question 3
Which of the following expression is used to calculate combination with no repetition?
A. B. 
C. D. 
Question 4
How is permutation different from combination?
A. If order of selected objects in a combination matters then it is a permutation.B. If order of selected objects in a combination does not matters then it is a permutation.
C. Order of selected objects in a combination is reverse of the order of selected objects is a permutation.D. Permutation is a superset of combination.
Question 5
Which of the following is not a common notation used to represent permutation?
A. P(n,r)B. nPr
C. nPrD. nrP
Question 6
Which of the following expression is used to calculate permutation with no repetition?
A. B. 
C. D. 
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Question 7
There are three balls; red, green and yellow. Which of the following represents all possible combinations of two balls?
A. red, green
green, yellow
B. red, green
red, yellow
green, yellow
C. red, green
green, red
red, yellow
yellow, red
green, yellow
yellow, green
D. 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?
A. red, green
green, yellow
B. red, green
red, yellow
green, yellow
C. red, green
green, red
red, yellow
yellow, red
green, yellow
yellow, green
D. red, green
green, red
red, yellow
yellow, red
Question 9
There are four balls; red, green, blue and yellow. If two balls are picked, what is the possible number of combinations?
A. 12B. 6
C. 8D. 24
Question 10
There are four balls; red, green, blue and yellow. If two balls are picked, what is the possible number of permutations?
A. 12B. 6
C. 8D. 24
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