Quiz Midterm DCS 2243

What type of set is denoted as either { } or ∅?

• Superset

• Kaset

• Null Set

• No Set

Find n(A) when A = {14, 16, 18, 20, 22, 24}.

• 24

• 14

• 6

• Even Numbers

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is $A\ \cup\ B$ ? 

• {3, 5, 7}

• {2, 3, 5, 7, 9}

• {2, 3, 5, 7}

• {1, 2, 3, 5, 7, 9}

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is $A\ \cap\ B$ ?

• {3, 5, 7}

• {2, 3, 5, 7, 9}

• {2, 3, 5, 7}

• {1, 2, 3, 5, 7, 9}

• n angry

• n factorial

• n stop

• &

A Mathematics test contains 5 different questions labeled A, B, C, D, and E. You are supposed to choose 2 questions to answer. How many different ways you can choose?

• 5

• 10

• 15

• 20

A family of 3 plans to sit in the same row at a movie theater. How many ways can the family be seated in 3 seats?

• 3

• 9

• 6

• 1

A group of 8 swimmers are swimming in a race. Prizes are given for first, second, and third place. How many different outcomes can there be?

• 336

• 56

• 48

• 3

4 students need to be selected from a class of 15 to help clean up the campus. How many different ways can the 4 students be chosen?

• 1

• 4

• 32760

• 1365

When ordering a pizza, you can choose 2 toppings from the following: mushrooms, olives, pepperoni, pineapple, and sausage. How many different types of pizza can you order?

• 10

• 1

• 2

• 5