# 1.Find the number of combinations (subsets) of 11 things taken 4 at a time.The answer is _____ combinations.

2.Use a calculator to evaluate the expression.

26^(c)13

26 Upper C 13=____

3.Determine whether the object is a permutation or a combination.

a 10-digit telephone number (including area code)

Choose the correct answer below.

**A.**

This is neither a permutation nor a combination because repetition is allowed.

**B.**

This is a combination because repetition is not allowed and the order of the items does not matter.

**C.**

This is a permutation because repetition is not allowed and the order of the items matters.

**D.**

There is not enough information given to make a decision.

4.Determine whether the object is a permutation or a combination.

a hand of cards in poker

Choose the correct answer below.

**A.**

This is neither a permutation nor a combination because repetition is allowed.

**B.**

This is a permutation because repetition is not allowed and the order of the items matters.

**C.**

This is a combination because repetition is not allowed and the order of the items does not matter.

**D.**

There is not enough information given to make a decision.

5.Determine whether the object is a permutation or a combination.

the batting order for a baseball team

Choose the correct answer below.

**A.**

This is a combination because repetition is not allowed and the order of the items does not matter.

**B.**

This is a permutation because repetition is not allowed and the order of the items matters.

**C.**

This is neither a permutation nor a combination because repetition is allowed.

**D.**

There is not enough information given to make a decision.

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