"Is the Game Fair?" Statistics and Probability PPT Courseware

Description

"Is the Game Fair?" Statistics and Probability PPT Courseware

learning target

1. Understand the probability of inevitable and impossible events, realize that the value of probability is between 0 and 1, and understand the fairness of game rules.

2. Experience the activity process of "guessing - testing and collecting test data - analyzing test results", understand the characteristics of uncertain phenomena, and develop the concept of randomness.

3. In the process of experiencing activities, cultivate students' awareness of cooperation and communication and the spirit of courage to explore.

New course introduction

Review the past and learn the new

1. In life, there are some events that we can be sure will happen in advance. These events are called _________;

2. There are some events that we can be sure will not happen in advance. These events are called ________;

3. There are some events that we cannot be sure in advance whether they will happen or not. These events are called _________.

As shown in the picture, there are two turntables that can rotate freely. Each turntable is divided into 6 equal sectors. Use these two turntables to play the following games:

(1) A can freely rotate turntable A, while B can freely rotate turntable B;

(2) After the turntable stops, move the pointer in a clockwise direction to get a number;

(For example: if the pointer on turntable A points to 3, move 3 spaces clockwise to get the number 6)

(3) If the final number is an even number, you will get 1 point, otherwise you will get no points;

(4) Spin the wheel 10 times and record the result of each score. The person with the highest cumulative score is the winner.

Discuss

1. Do you think the game is fair to both parties A and B? Tell me why.

2. For turntable A, if the final number is an even number, it is a ____ event. If the final number is an odd number, it is a ____ event.

3. For turntable B, if the final number is an even number, it is a ____ event. If the final number is an odd number, it is a ____ event.

Practice in class

1. The probability of an event occurring is as follows:

⑴Very likely, but unlikely to happen; ( )

⑵The probability of occurrence is the same as that of non-occurrence; ( )

⑶The possibility of occurrence is extremely small; ( )

⑷It can’t happen. ( )

Try to relate them to the following values:

(A)0.1% (B)50% (C)0 (D)99.99%

2. (2010·Zhanjiang High School Entrance Examination) The events described in the following idioms will inevitably happen ( )

(A) Catching the moon in the water (B) Catching the turtle in the urn

(C) Sit back and wait (D) Destroy the seedlings and encourage them to grow

[Analysis] Choose B. According to the definition of inevitable events, we know that B should be chosen.

Summary of this lesson

Through the study of this class, we need to master:

1. Know the probability of an uncertain event happening by doing experiments.

2. What is the principle of game fairness? How to evaluate whether a game is fair to both parties?

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For more information about the PPT courseware "Is the Game of Statistics and Probability Fair?", please click the "Is the Game of Statistics and Probability Fair" ppt tag.

"Is the Game Fair?" Statistics and Probability PPT Courseware 3:

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"Is the Game Fair?" Statistics and Probability PPT Courseware 2:

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Update Time: 2024-11-19

This template belongs to Mathematics courseware Beijing Normal University Ninth Grade Mathematics Volume 2 industry PPT template

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