Probability Concepts

What does Probability mean?

• The likelihood of an event happening

• Why an Event Happens

• a set of one or more outcomes of an experiment

• one of the possible results of an experiment

What is an outcome?

• the likelihood of an event happening

• Why an Event Happens

• a set of one or more outcomes of an experiment

• one of the possible results of an experiment

What is an event?

• the likelihood of an event happening

• Why an Event is Happening

• a set of one or more outcomes of an experiment

• one of the possible results of an experiment

Given a number cube with numbers 1-6, what is the probability you roll a 7?

• certain

• impossible

• as likely as not

• more likely than not

• unlikely

Given a number cube with numbers 1-6, what is the probability you roll a number less than 10?

• certain

• impossible

• as likely as not

• more likely than not

• unlikely

Given a number cube with numbers 1-6, what is the probability you roll an even number?

• certain

• impossible

• as likely as not

• more likely than not

• unlikely

Given a number cube with numbers 1-6, what is the probability you roll a number 5 or 6?

• certain

• impossible

• as likely as not

• more likely than not

• unlikely

Given a number cube with numbers 1-6, what is the probability you roll a factor of 12?

• certain

• impossible

• as likely as not

• more likely than not

• unlikely

Leo has a bag of tiles with the letters from the word IMPOSSIBLE. He pulls a random tile out of the bag. Which outcomes are more likely than not?

• pulling a vowel

• pulling a consonant

• pulling an E or P

• puling an L, M, or S

• pulling an I, O, P, or S

Choose likely or not for the following situations: According to the weather report, there is a 25% chance it will snow today. It snows today.

• Likely

• Unlikely