Teacher Mey's Quiz 1

A jar contains only black and white balls. The probability of randomly choosing a white ball from the jar is currently 5 12 . If 1 white ball and 1 black ball are removed from the jar, what will be the new probability of randomly choosing a white ball from the jar?

• 4/11

• 2/5

• 6/13

• 4/9

Mark’s deli offers customers 2 different types of bread (white and rye), 4 different cold cuts (ham, turkey, salami, and bologna), and 4 different condiments (mustard, ketchup, mayonnaise, and relish). Assuming a customer picks one type of bread, one cold cut, and one condiment only, how many different combinations of bread, cold cut, and condiment are possible?

• 10

• 12

• 26

• 32

It refers to the number of ordered arrangements of different objects in a line.

• Repetition

• Circular Permutation

• Permutation of Distinct Objects

• Permutation of Non-Distinct Objects

Which of the following situations involve permutation?

• Matching tops and skirts

• Winning the “suertres lotto” combination in the PCSO

• Choosing 4 of your classmates to be your project buddies

• Finding the lines formed by connecting the given points on a plane

In how many ways can the letters of the word LOVE be arranged?

• 4

• 12

• 24

• 48

Which expression gives the number of ways of arranging 6 different books in a shelf?

• (6 – 1)!

• 6!

• 6 x 5

• 1. 6 x 6

There are 5 boys and 4 girls to sit in a row. How many possible 

arrangements are there if: the first seat is reserved for a boy?

• 2,880

• 10,080

• 60,480

• 1. 201,600

There are 5 boys and 4 girls to sit in a row. How many possible 

arrangements are there if: the first and last seats are for girls?

• 2 880

• 10 080

• 60 480

• 201 600

Which concept is involved when the letters of the word “SEND” taken 4 at a time equals 24?

• Combination

• FPC

• Permutation

• 1. Probability

  
  

There are 3 identical red flags, 3 identical blue flags, and 2 identical white flags.

Using all 8 flags, how many signals can be made? 

• 560

• 1 120

• 6 720

• 20 160