"The Dispersion Degree of Data" Data Analysis PPT Download (Lesson 2)

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"The Dispersion Degree of Data" Data Analysis PPT Download (Lesson 2), 12 pages in total.

Part One: Type Analysis

Type Comprehensive application of variance and mean

1. [2016·Inner Mongolia] In order to select one of the two athletes A and B to participate in the national competition, a shooting team conducted 8 tests on them. The test results (unit: ring) are as follows:

Type Comprehensive Application of Variance and Median

2. Our school is preparing to select a high jumper to participate in the Kodong District Middle School Sports Meet. We conducted 8 selection competitions for athletes A and B of the high jump team. Their results (unit: cm) are as follows:

A: 170 165 168 169 172 173 168 167

B: 160 173 172 161 162 171 170 175

(1) What are the average high jump scores of athletes A and B?

(2)Which athlete's performance is more stable?

(3) If predicted, if you skip 165 cm (including 165 cm), you are likely to win the championship. Which athlete might the school choose to compete in order to win the championship? What if you predict that you have to jump 170 cm (including 170 cm) to win the championship?

Dispersion degree of data PPT, part 2: teach you a trick

Data analysis methods:

(1) Understand that the mean, median, and mode reflect the central tendency of the data, and the variance and standard deviation reflect the degree of fluctuation of the data.

(2) In specific problems, flexibly select appropriate data to solve related problems according to actual problems.

Keywords: Free download of Beijing Normal University edition eighth-grade mathematics PPT courseware for volume 1, data discreteness PPT download, data analysis PPT download, .PPT format;

For more information about the "Data Analysis and Dispersion Degree of Data" PPT courseware, please click on the Data Analysis PPT and Data Dispersion Degree PPT tab.

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Update Time: 2024-10-06

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