"Analyzing the Central Trend of Data from Statistical Charts" Data Analysis PPT Courseware

Description

"Analyzing the Central Trend of Data from Statistical Charts" Data Analysis PPT Courseware

learning target

1. Master the characteristics of line charts, bar charts, and sector charts

2. Able to obtain information from statistical charts and find or estimate the average, median and mode of relevant data

Preview test

1. In order to check whether the quality of bread meets the standard, 10 breads of the same specification were randomly selected. The quality of these 10 breads is as shown in the figure below: The median of the quality of these 10 breads is ____, and the mode is ____ , the estimated average quality is ____. Do the math to verify your estimate.

2. In a certain shooting competition, the results of Team A are as follows: According to the statistical chart, determine the mode ____ and median ____ of the 10 shooting results. First estimate the average of these 10 shooting results as ____, and then Do the math specifically to see how good your estimate is.

Inquiry Outline

1. Study "Discussion" on page 145 of the textbook.

Requirements: Answer the questions raised by "Yiyiyi" based on the given graphics.

The three youth volleyball teams A, B, and C each have 12 members. The ages of the members of the three teams are as follows:

2. The picture below is a statistical chart of the sales volume of sports shoes in a certain shopping mall in one day. In a set of data consisting of the sizes of these sports shoes, the mode and median are ( ) respectively

A. 25,25B. 25,24.5 C. 24.5,25 D． 24.5,24.5

Classroom testing

1. The highest temperature statistics for each day of the week in our city are as follows:

(1) Write the median and mode of this set of data;

(2) Find the average of this set of data.

2. A traffic manager made statistics on the number of people who ran red lights at an intersection in the city center on Sunday. Based on the number of people who ran red lights in each time period from 7:00 to 12:00 a.m. (one hour is a time period), he produced a As shown in the bar chart shown in the figure, the mode and median of the number of red light runners in each time period are ( )

A. 15,15 B． 10,15 C． 15,20 D． 10,20

3. A stationery store owner purchased a batch of stationery boxes with different prices. Their prices are 10 yuan, 20 yuan, 30 yuan, 40 yuan and 50 yuan respectively. The sales situation is as shown in the figure.

The average, mode and median selling prices of this batch of stationery boxes are ____, ____ and ____ respectively.

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For more information about the PPT courseware "Data Analysis to Analyze the Central Tendency of Data from Statistical Charts", please click the Data Analysis ppt to Analyze the Central Tendency of Data from Statistical Charts ppt tag.

"Analyzing the Central Trend of Data from Statistical Charts" Data Analysis PPT Courseware 2:

"Analyzing the Central Trend of Data from Statistical Charts" Data Analysis PPT Courseware 2 Teaching Objectives: 1. Experience the activities of analyzing the central tendency of data from statistical charts, establish data intuition, and develop geometric intuition. 2. Can be obtained from statistical charts such as bar charts and fan charts.

File Info

Update Time: 2024-10-01

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

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