"Using a Calculator to Find the Average" Data Analysis PPT Courseware

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Beijing Normal University eighth grade first volume mathematics	pptx	6 MB

"Using a Calculator to Find the Average" Data Analysis PPT Courseware

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Upload Time: 2024-09-11

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"Using a Calculator to Find the Average" Data Analysis PPT Courseware

New knowledge exploration

Ⅰ. Estimate the width of your own desk and tally the estimation results of each team member (accurate to 0.1 cm).

Ⅱ. Use a calculator to find the average of the estimated results. How do you do it? Communicate with peers.

Ⅲ. Use a ruler to measure the width of the desk and see what everyone estimates.

IV. General steps for using a calculator to find the average:

(1) Enter statistical status

(2)Input data

(3)Display data

Consolidation exercises

1. Use a calculator to calculate the average of the following data:

12.8, 12.9, 13.4, 13.0, 14.1, 13.5, 12.7, 12.4,

13.9, 13.8, 14.3, 13.2, 13.5.

2. The English teacher assigned 10 multiple-choice questions as classroom exercises. Xiaoli drew the problem-solving performance of the whole class into the following bar chart. Based on the chart, find the average number of questions each student got right.

3. Conduct new rice variety planting experiments in four experimental fields A, B, C, and D. The area of each experimental field and the unit yield of the rice grown are as follows:

What is the average unit yield of rice in the four experimental fields?

4. The results of two gymnasts A and B in the last 10 competitions are as follows (unit: points):

A: 9.88, 9.87, 9.90, 9.91, 9.85, 9.92, 9.88, 9.89, 9.90, 9.86;

B: 9.62, 9.68, 9.82, 9.71, 9.75, 9.85, 9.92, 9.79, 9.80, 9.78.

Use a calculator to compare the average scores of two athletes, A and B, in 10 games.

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Update Time: 2024-09-11

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

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"Using a Calculator to Find the Average" Data Analysis PPT Courseware