1) What does a combination help you do? a) Choose items b) Draw pictures c) Measure length d) Count money 2) Which situation uses combinations? a) Selecting 2 winners from a class b) Arranging 2 chairs c) Forming a 3-digit code d) Ranking athletes 3) What is the value of C(4, 1)? a) 1 b) 4 c) 6 d) 10 4) What does the letter r in C(n, r) mean? a) Total items b) Items you choose c) Items you subtract d) Items you arrange 5) What is C(3, 3)? a) 3 b) 1 c) 6 d) 0 6) Which situation does NOT use combinations? a) Choosing 3 out of 8 students b) Selecting 2 toppings for pizza c) Arranging 4 books in order d) Picking 5 cards from a deck 7) C(5,0) a) 0 b) 1 c) 5 d) 10 8) Which is an example of choosing without order? a) Selecting 2 pets from 5 b) Listing the top 3 finishers c) Making a 4-digit PIN d) Arranging students by height 9) A customer wants 3 muffins from 5 types. How many combinations? a) 5 b) 10 c) 15 d) 20 10) C(2, 2) a) 1 b) 2 c) 4 d) 0

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