Hebei Education Edition Eighth Grade Mathematics Volume 2

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"Preliminary Understanding of Statistics" PPT

Part One: Introduction of New Course

In class, the teacher assigned an exercise question. After a while, the teacher may want to know how everyone has completed the task.

One is to patrol, and the other is to ask students to raise their hands.

Solving these practical problems is the statistical process of data collection, data analysis, and decision-making.

think about it

New Year's Day is coming soon, and the class is going to hold a New Year's Day party. If you were to plan this event, how would you arrange the program?

Questionnaire

What is your favorite program format (select only one): ()

A. Song B. Instrumental music C. Dance D. Opera E. Cross talk, sketch

After filling out, please hand the questionnaire to the monitor. Thank you for your cooperation!

Preliminary understanding of statistics PPT, the second part of the content: Designing questionnaires:

1. Clarify the object of investigation

2. Clarify the purpose of the investigation

3． Determine the content and questions of the questionnaire based on the object and purpose of the survey

4. Indicate the method and time for collecting and submitting the questionnaire, etc.

think

If you want to know more about the differences between male and female students’ favorite programs, how should you design a questionnaire?

Questionnaire

Your gender ()

A. Male B. female

What is your favorite program format (select only one): ()

A. Song B. Instrumental music C. Dance D. drama

E． Cross talk, sketch

After filling out, please hand the questionnaire to the monitor. Thank you for your cooperation!

Preliminary understanding of statistics PPT, the third part: ask questions

Among the ways to collect data, what are the direct ways? What are the indirect pathways?

(Interview, measurement, investigation, experiment, data review, observation)

Direct ways include: observation, measurement, investigation, experiment, and visit;

Indirect ways include: looking up information (checking literature, the Internet, etc.).

What method would you use to collect the following data?

①The number of gold medals won by our country in recent Olympic Games

②The date of birth of classmates;

③The popularity of a certain brand of beverage;

④The number of people on the sports field within 1 hour after school in the afternoon;

⑤After the high school entrance examination, Xiao Ming wanted to know the admission scores of various high schools in Funan County this year.

Preliminary understanding of statistics PPT, part 4: give it a try

In a mathematics class, Teacher Chen asked four students to give examples of the use of comprehensive surveys or sample surveys in life.

Xiaoliang: In order to understand the germination status of corn seeds, a sampling survey was adopted.

Xiao Shuang: In order to find out whether the whole class has washed the feet of their parents, a comprehensive survey was conducted.

Xiaoxia: In order to understand the service life of a batch of light bulbs just produced, a comprehensive survey was conducted.

Xiaotian: In order to understand the mastery of safety and self-rescue knowledge among middle school students across the country, a sample survey was adopted.

What do you think is the wrong way to investigate the cases cited by the four students above? ()

A． Xiaoliang B． Xiaoshuang C． Xiao Xia D． Xiao Tian

Preliminary understanding of statistics PPT, Part 5: Class summary

⑴ Data can speak – showing that the data is useful

⑵ How to let the data speak - it is inseparable from the collection of data, which can be done through observation, measurement, survey, experiment and other methods, as well as searching for literature, using the Internet to query, etc.

Keywords: Free download of Hebei Education Edition mathematics PPT courseware for eighth grade volume 2, preliminary understanding of statistics PPT download, .PPT format;

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Update Time: 2024-10-02

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