Introductory Statistics Lesson 3.1 D Objective: SSBAT find the probability of the complement of events and applications of probability. Standards: M11.E.3.1.1. Complement of Event E The set of all outcomes in a sample space that are NOT included in event E
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Lesson 3.1 D
Objective: SSBAT find the probability of the complement of events and applications of probability.
Use the spinner to the right.
Find the probability of not rolling a 5.
P(not 5) =
P(not 7 or 8) =
Find the Probability of not picking a Heart
You put all the letters of the alphabet in a hat. You randomly pick one letter from the hat.
What is the probability that you do not pick a vowel? (there are 5 vowels in the alphabet)
Sometimes you will have to use a Tree Diagram or the Fundamental Counting Principle to find the total number in the sample space first before finding the probability.
30 · 29 · 28 · 27 · 26
17,100,720 different ways
b) What’s the probability that the next car sold is a Red Chevy?
The daily number in the PA lottery consists of 3 numbers. Each number can be from 0 to 9 and the numbers may repeat. If you randomly choose a 3 digit number to play, what is the probability you will pick the winning number?
Find how many possible outcomes there are
10 · 10 · 10 = 1,000
Worksheet 3.1 D