GRADE 8 PROBABILITY

What is the probability of randomly selecting an odd number from the numbers 1 -15?

• 8/15

• 1/2

• 7/15

• 1/8

Twelve students have an equally likely chance of being selected in a drawing at school. Eight are girls and four are boys. What is the probability that a boy will be selected?

• 1/4

• 1/3

• 1/8

• 3/4

Which of the following has a certain likelihood of occurring?

• A field goal will be made by the kicker

• There is a 70% of rain on Monday

• Next month has at least 29 days

• A coin will land on either heads or tails

Two coins are flipped. What is the probability that both of the coins land heads up?

• 1/2

• 1/4

• 1/6

• 1

A bag has 3 red marbles, 2 blue and 4 yellow. What is the probability of pulling a red?

• certain
• impossible 
• unlikely 
• equally likely 

A bag has 3 red marbles, 2 blue and 4 yellow. What is theprobability of pulling a orange?

• certain
• impossible 
• unlikely 
• equally likely 

What is the probability of spinning green?  Remember to reduce!

• 0
• 1/4
• 1/2
• 3/4

What is the probability of spinning red?

• 0
• 5/12
• 1/2
• 3/4

The probability based on frequency of outcomes during an experiment

•  experimental probability
• fundamental counting principle
• theoretical probability
• dependent event

The theoretical probability of rolling an even number on a dice.

• 3/6
• 1/2
• 1/6
• 5/6