Probability of an event
Predict & Display Data
Probability – Sample Space
PR10 Probability with a Single Die
PR11 Rolling a single die
PR12 Picking numbers out of a hat
PR13 Probability of picking a marble from a bag_1
PR14 Probability of picking a marble from a bag_2
PR15 On the spinner, what is the probability of …
PR16 Probability With a 10-section spinner
PR17 Probability of picking a tile from a bag.
Finding the Probability of Independent Events
(Sample space UNCHANGED)
If A and B are independent events, then
P(A and B) = P(A)•P(B)
Finding the Probability of Dependent Events
(Sample space DECREASES)
If A and B are dependent events, then
P(A and B) = P(A) • P(B given A)
Probability – Counting Principle Probability – Independent Event Probability Application
Theoretical Probability is determined through reasoning (the ratio of the number of favorable outcomes to the number of possible outcomes).
Experimental probability is found by repeating an experiment and observing the outcomes.
A monkey is sitting by and hitting 4 keys randomly. Suppose that the monkey is answering a multiple choice MATH STAAR TEST. There are 56 questions and each question has 4 options. Find the experimental probability