Unit 2Introduction to Probability

Learning Goal: I can identify examples of the use of probability in the media and

different ways in which probability is represented (fraction, percent, decimal)

What is Probability?

• Probability is the likelihood an event will occur

What are the different ways to show a probability?

• Fraction: number of ways events can occur divided

by number of outcomes

• Decimal: 0. 25 (score out of 1)

• Percent: 25% (score out of 100)

Fraction Decimal Percent

Multiply by 100Divide

numerator by denominator

€

1

4

How is probability used in our daily lives?

• Grab a newspaper (& a coffee!) and find and record as many examples as you can.

• If you can think of others off the top of your head, add those to the list as well.

Homework

• Pg. 347 # 1,2• Pg. 351-2 # 1,2,4,6,7