Western Normal University Edition First Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 1
People's Education Press Third Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Hebei Education Edition Seventh Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
People's Education High School Mathematics Edition B Compulsory Course 2
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 2
Jiangsu Education Edition Fourth Grade Mathematics Volume 1
Qingdao Edition Second Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
!["The Probability of Staying on the Black Brick" Frequency and Probability PPT Courseware](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/7e0dc124-7b6e-492e-9412-4a74a0c63cbf.webp)
Category | Format | Size |
---|---|---|
Beijing Normal University seventh grade mathematics volume 2 | pptx | 6 MB |
Description
"The Probability of Staying on the Black Brick" Frequency and Probability PPT Courseware
Reflection
1. What is the probability of getting a red ball?
P (touching a red ball) = the number of possible outcomes for drawing a red ball/the number of possible outcomes for drawing any ball
2. What are the probabilities and expressions of the three events?
①The probability of an inevitable event occurring is 1, recorded as P (inevitable event) = 1;
②The probability of an impossible event occurring is 0, recorded as P (impossible event) = 0;
③If A is an uncertain event, then 0
Discuss
Suppose the kitten is walking freely around on the floor as shown in the picture
①Is the probability that the kitten will stay on any square brick the same every time it walks?
②What are the possible results if the kitten stays on the black brick?
③What are the possible results if the kitten stays on a square brick?
④What is the ratio of the number of possible outcomes if the kitten stays on the black tile to the number of possible outcomes if it stays on a square tile?
⑤What is the probability that the kitten ends up on the black brick? How to find it?
In order to attract customers, a shopping mall set up a carousel that can rotate freely, and stipulated that customers who spend more than 100 yuan can get a chance to spin the carousel. If the pointer is aligned with the red, yellow or green area after the turntable stops, the customer can get 100 yuan, 50 yuan, and 20 yuan shopping coupons respectively (the turntable is divided into 20 sectors as shown in the picture).
(1) If customer A spends 80 yuan, will he get the opportunity to spin the carousel?
(2) Customer B spends 120 yuan, what is the probability that he will get a shopping coupon? What are the probabilities that he gets 100 yuan, 50 yuan, and 20 yuan shopping coupons respectively? What is the probability that he will not get a shopping voucher?
Do it
1. The six faces of a uniform small cube are marked with numbers 1, 2, 3, 4, 5, and 6 respectively. Throw this small cube at will and calculate the probability of the following events:
(1) The number thrown is an odd number; (2) The number thrown is an even number.
2. If there is oil stored in a continental shelf with a surface area of 50 square kilometers in a sea area of 100,000 square kilometers. If you choose any point to drill in this sea area, what is the probability of drilling for oil?
3. As shown in the picture: the turntable is divided into 16 equal sectors. Please paint the appropriate places on the turntable so that the turntable can rotate freely. When it stops rotating, the probability of the pointer falling in the red area is 3/8. You Can you name an uncertain event with the same probability of happening?
Supplementary exercises
A piece of paper with a password written on it is randomly buried in the rectangular area below (each square is the same size).
(1) In which area is it most likely to be buried?
(2) Calculate the probabilities of being buried in the three areas;
(3) Which two areas have the same probability of being buried?
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For more information about the "Frequency and Probability Probability of Staying on the Black Brick" PPT courseware, please click the "Frequency and Probability ppt Probability of Staying on the Black Brick" ppt tag.
"The Probability of Staying on the Black Brick" Frequency and Probability PPT Courseware 3:
"Probability Staying on the Black Brick" Frequency and Probability PPT Courseware 3 Learning Objectives 1. Further understand the meaning of probability in specific situations and realize that probability is a mathematical model that describes uncertain phenomena. 2. Understand the calculation method of the probability of a type of event, and conduct a simple...
"The Probability of Staying on the Black Brick" Frequency and Probability PPT Courseware 2:
"The Probability of Staying on the Black Brick" Frequency and Probability PPT Courseware 2 Review: 1. What is the probability of touching a red ball? P (touching a red ball) = the number of possible results if a red ball is touched/the number of possible results of touching any ball 2. What are the probabilities and expressions of the three events? ①Must...
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Update Time: 2024-09-12
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!["The Probability of Staying on the Black Brick" Frequency and Probability PPT Courseware](http://daogebangong.oss-cn-beijing.aliyuncs.com/ppt/preview/1/1b26363b-9307-4035-b742-a505a9773ed0.webp)