Probability of Single Event

A bag of markers has 4 red markers, 5 blue markers, 3 yellow markers, and 3 green markers. If Maria pulls out a marker without looking, what is the probability he will NOT pull out a blue marker?

• 5/10
• 1/3
• 4/15
• 2/3

Probability is ...

• the chance that some event will occur.
• a game that involves coins.
• a guarantee.

A die is rolled. What is the probability that the result is less than 3 ?

• 1/2
• 1/3
• 1/4
• 1/6

What is the probability of spinning red?

• 0

• 5/12

• 1/2

• 3/4

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7
• 5/49
• 5/7
• 10/49

You flip a coin.

What is P(heads)?

• 50%

• 1%

• 25%

• 100%

What is the probability of spinning a prime number? 

• 1/2
• 2/3
• 1/6
• 0

Probability can be between what two numbers?

• 10 and 20
• 0 and 100
• 0 and 1
• All Numbers are possible

A coin and a number cube with the numbers 1 through 6 are tossed. What is the probability of the coin showing tails and the number cube showing the number 3? 

• 1/12
• 1/4
• 1/8
• 1/2

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4