Download presentation

Presentation is loading. Please wait.

Published byLorenzo Berley Modified over 3 years ago

1
Chapter 15 Lesson 3 Finding Outcomes Pages 421-423 1-3 all

2
Cornell Notes – Chap. 15 Lesson 3 Main Ideas/Cues: Disjoint events Details: Events that have no outcomes in common. Example: When rolling a number cube, the events getting an odd number and getting a 4 are disjoint events.

3
Cornell Notes – Chap. 15 Lesson 3 Main Ideas/Cues: Overlapping events Details: Events that have one or more outcomes in common. Example: When rolling a number cube, the events getting a number less than 3 and getting an even number are overlapping events because they have the outcome 2 in common.

4
Cornell Notes – Chap. 15 Lesson 3 Main Ideas/Cues: Complementary events Details: Two disjoint events such that one or the other of the events must occur. Example: When rolling a number cube, the events getting an odd number and getting an even number are complementary events.

5
Cornell Notes – Chap. 15 Lesson 3

6
Problem #1 First Step: Write the Problem 1. Tell whether the events involving the spinner are disjoint or overlapping. Event R: Spin a number divisible by 4. Event S: Spin a prime number

7
Problem #1 Second Step: List the numbers for each event. 1. Event R: 4 and 8 Event S: 2, 3, and 7 Spin a number divisible by 4 Spin a prime number

8
Problem #1 Third Step: Are any outcomes in common? 1. Event R: 4 and 8 Event S: 2, 3, and 7 Disjoint; No outcomes are in common, a prime number is not divisible by any number other than 1 and itself.

9
Problem #2 First Step: Write the Problem 2. Malcolm has 2 green tiles, 4 yellow tiles, and 3 blue tiles in a bag. He chooses 1 tile out of the bag without looking. What is the probability that the tile is green or blue?

10
Problem #2 Second Step: Rewrite using the Probability formula. 2. P(green or blue) = P(green) + P(blue) 2 + 3 9 9 P( ) Number of green tiles + Number of blue tiles Total number of tiles Total number of tiles

11
Problem #2 Third Step: Add the fractions. 2. P(green or blue) = P(green) + P(blue) 2 + 3 = 5 9 9 9 Answer

12
Problem #3 First Step: Write the Problem 3. On a subway, 30% of the riders have briefcases. What is the probability that a randomly chosen rider does not have a briefcase? About how many riders out of 350 would not have a briefcase?

13
Problem #3 Second Step: Change the percent to a decimal and subtract from 1. 3. P(has a briefcase) = 1 – P(does not have a briefcase) 1 – 0.3 = 0.7 ; 70% do not have a briefcase What is the decimal for 30%? How many do not have a briefcase? Answer to the first question!

14
Problem #3 Third Step: Now find 70% of 350. Write the percent equation and replace the variables with the known numbers 3. a = 70% 350 a = 0.7 350 a = 245 245 riders out of 350 would not have a briefcase. a = p% b Answer to the second question! Change the percent to a decimal Answer

15
Cornell Notes Summary Include the following statement and answer in your Cornell Notes Summary. How do you find the probability that either event A or event B will occur if they are disjoint events? You can find the probability that either event A or event B will occur if they are disjoint events by ____________.

Similar presentations

OK

Lesson 6.6 Probability Students will be able to determine theoretical probabilities.

Lesson 6.6 Probability Students will be able to determine theoretical probabilities.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on social contract theory of government Ppt on product design process Ppt on unit and non unit fractions Ppt on regional transport office ahmedabad Ppt on standing order act waivers Ppt on switching network systems Ppt on role of ngo in india Presentations open ppt on mac Ppt on green revolution vs organic farming Ppt on sanskritization definition