"Data Collection" Data Collection and Processing PPT Courseware 5

Description

"Data Collection" Data Collection and Processing PPT Courseware 5

1. Is the data useful?

What is our favorite physical activity?

Do your classmates often sweep the floor at home?

What methods do teachers and classmates use to go to school?

Do you have breakfast before going to school every day?

2. Data collection steps

(1) Clarify the investigation problem—which option to choose?

(2) Determine the target of the investigation—every student in the class

(3) Select the survey method—opinion poll method

(4) Launch investigation - vote

(5) Record the results - count the votes

(6) Draw conclusions - determine the investigation plan

The following surveys are suitable for collecting data using the election method ( )

A. Who scored the most goals in the World Cup;

B. What holiday is June 1st?

C. Who got first place in the final exam;

D. Who is most suitable to be the math class representative?

Since the reform and opening up, my country's national economy has maintained a good momentum of development, and its GDP has continued to grow rapidly. The figure below is a statistical chart of GDP from 1998 to 2002. Based on the information in the figure, answer the following questions:

(1) The GDP in 1999 was _______.

(2) It is known that the GDP in 2002 increased by 1.2956 billion yuan compared with 2000, and the GDP in 2001 increased by 649.1 billion yuan compared with 2000. Find the percentage growth rate of the GDP in 2002 compared with 2001. (The result retains two significant figures)

Summary

1. Methods of collecting data

Public opinion polling method, media inquiry method, field investigation method.

2. Use data to help decision-making - let the data speak

Data speaks. Data is useful.

How to let data speak Data collection

How data speaks Data analysis

Keywords: data collection and processing teaching courseware, data collection teaching courseware, Beijing Normal University edition eighth grade mathematics volume 2 PPT courseware, eighth grade mathematics slide courseware download, data collection and processing PPT courseware download, data collection PPT Courseware download, .ppt format

For more information about the "Data Collection and Processing Data Collection" PPT courseware, please click the Data Collection and Processing ppt Data Collection ppt tab.

"Data Collection and Arrangement" PPT:

"Data Collection and Organizing" PPT Part One: Data Collection How to obtain the data we need in life? 1. A website conducted a survey on the popularity of Wufuwa among netizens, and 145,964 people participated in the vote. The website’s love for the mascot among netizens...

"Data Fluctuation" Data Collection and Processing PPT Courseware 3:

"Data Fluctuation" Data Collection and Processing PPT Courseware 3 Problem Situation In order to improve the international competitiveness of agricultural and sideline products, some industry associations have divided the planning of agricultural and sideline products. A foreign trade company wants to export a batch of 75g chicken legs. There are currently 2 manufacturers providing...

"Data Fluctuations" Data Collection and Processing PPT Courseware 2:

"Data Fluctuation" Data Collection and Processing PPT Courseware 2 Courseware Description This lesson is to understand the necessity and importance of analyzing the fluctuation degree of a set of data in a specific problem situation, by analyzing the scatter points of two sets of data with close averages Graphical representation, intuitively feel the data wave...

File Info

Update Time: 2024-11-05

This template belongs to Mathematics courseware Beijing Normal University eighth grade mathematics volume 2 industry PPT template

Preview