13.1 Introduction to Probability
Math6
Vocabulary:
*** Outcomes: all the possible results.
*** Event: a collection of outcomes.
*** Favorable outcomes: the outcomes you want to
happen for each event.
*** Probability: is a measure of likelihood
Probability = Number of favorable events
Total # of possible outcomes
***Probability line:
***Complementary Events: Two events that have
NO outcomes in common and together they
contain all the outcomes of the experiment.
Examples
**Ex. 1: Finding a Probability
Try these on your own:
**Ex. 2: Describing Probabilities
Try these on your own
**Ex. 3: Complementary Events
Try these on your own:
1. In Example 3, predict the number of spins out
of 50 that will be vowels.
Guided Practice/Ticket out the Door