Presentation 4

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This document provides a step-by-step guide for thinking like a data scientist by walking through an example of collecting and analyzing meeting start time data. The exercise illustrates key concepts in data analytics from defining relevant metrics and protocols for data collection, to visualizing the data in a plot, summarizing statistics, identifying variations, and posing additional questions to further explore the data.

HOW TO START
THINKING LIKE A DATA
SCIENTIST – BY THOMAS
C REDMAN

INTERESTING INSIGHT
2
You don’t have to be a
data scientist or a
Bayesian statistician to
tease useful insights
from data.

he exercise is very much a how-to, each step
also illustrates an important concept in
analytics — from understanding variation to
visualization.
ach step also illustrates an important
concept in analytics — from understanding
variation to visualization.
4
Lets try an exercise that illustrates an important concept in
analytics — from understanding variation to visualization.

Start with something that interests or bothers
you and form it up as a question
5
“Meetings always
seem to start late. Is
that really true?”
EXAMPLE

Write down all the relevant definitions and
protocol for collecting the data.
6
▰ For this particular example,
define when the meeting
actually begins. Is it the time
someone says, “Ok, let’s
begin.”? Or the time the real
business of the meeting starts?
Does kibitzing count?
▰

It is critical that you
trust the data.
7
COLLECT
DATA

Sooner , you’ll be ready to start drawing some
pictures.
▰ Here, a plot
represents the date
and time of a
meeting versus the
number of minutes
late.
▰
8

Now return to the question and develop summary
statistics.
▰ In this case, “Over a two-week period,
10% of the meetings I attended started
on time. And on average, they started
12 minutes late.”
▰
9

Answer the “so what?” question.
▰ In this case, “If those
two weeks are typical, I
waste an hour a day.
And that costs the
company $X/year.”
▰
11

Get a feel for variation.
12
A few meetings start right on
time, others nearly a full 30
minutes late but the variation is
too great.

“What else does the data reveal?”
Five meetings that began exactly
on time were called by the
Vice President of Finance.
Evidently, she starts all her
meetings on time.
▰
14

Are your results consistent with
others’ experiences in the
company?
Which starts later: conference
calls or face-to-face
meetings?
Are some days worse than
others?
15

Return to step one, pose
the next group of
questions, and repeat
the process. Keep the
focus narrow — two or
three questions at most.

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原件一模一样【微信：WP101A】【(usyd毕业证书)悉尼大学毕业证书学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。【业务选择办理准则】一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。留信网认证的作用: 1:该专业认证可证明留学生真实身份【微信：WP101A】 2:同时对留学生所学专业登记给予评定 3:国家专业人才认证中心颁发入库证书 4:这个认证书并且可以归档倒地方 5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息 6:个人职称评审加20分 7:个人信誉贷款加10分 8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才 → 【关于价格问题（保证一手价格）我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子我给客户的都是第一手的代理价格，因为我想坦诚对待大家不想跟大家在价格方面浪费时间对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！办理(usyd毕业证书)悉尼大学毕业证学位证）学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。办理(usyd毕业证书)悉尼大学毕业证学位证）学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：校徽：象征着学校的荣誉和传承。校名:学校英文全称授予学位：本部分将注明获得的具体学位名称。毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。办理(usyd毕业证书)悉尼大学毕业证学位证）学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。综上所述，办理(usyd毕业证书)悉尼大学毕业证学位证）学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。

11th-CS system overview ppt chapter-01.pdf

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Applications of Data Science in Various Industries

IABAC

Niagara College degree offer diploma Transcript

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原版制作【微信：A575476】【(NC毕业证)尼亚加拉学院毕业证成绩单offer】【微信：A575476】（留信学历认证永久存档查询）采用学校原版纸张（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。【业务选择办理准则】一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：A575476】文凭即可二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：A575476】即可三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。留信网认证的作用: 1:该专业认证可证明留学生真实身份【微信：A575476】 2:同时对留学生所学专业登记给予评定 3:国家专业人才认证中心颁发入库证书 4:这个认证书并且可以归档倒地方 5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息 6:个人职称评审加20分 7:个人信誉贷款加10分 8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才 → 【关于价格问题（保证一手价格）我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子我给客户的都是第一手的代理价格，因为我想坦诚对待大家不想跟大家在价格方面浪费时间对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！办理(NC毕业证)尼亚加拉学院毕业证【微信：A575476】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。办理(NC毕业证)尼亚加拉学院毕业证【微信：A575476】格式相对统一，各专业都有相应的模板。通常包括以下部分：校徽：象征着学校的荣誉和传承。校名:学校英文全称授予学位：本部分将注明获得的具体学位名称。毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。办理(NC毕业证)尼亚加拉学院毕业证【微信：A575476】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。综上所述，办理(NC毕业证)尼亚加拉学院毕业证【微信：A575476 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。

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一比一原版(usyd毕业证书)悉尼大学毕业证如何办理

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Applications of Data Science in Various Industries

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Presentation 4

1. HOW TO START THINKING LIKE A DATA SCIENTIST – BY THOMAS C REDMAN

2. INTERESTING INSIGHT 2 You don’t have to be a data scientist or a Bayesian statistician to tease useful insights from data.

3. Want to know How? 3

4. he exercise is very much a how-to, each step also illustrates an important concept in analytics — from understanding variation to visualization. ach step also illustrates an important concept in analytics — from understanding variation to visualization. 4 Lets try an exercise that illustrates an important concept in analytics — from understanding variation to visualization.

5. Start with something that interests or bothers you and form it up as a question 5 “Meetings always seem to start late. Is that really true?” EXAMPLE

6. Write down all the relevant definitions and protocol for collecting the data. 6 ▰ For this particular example, define when the meeting actually begins. Is it the time someone says, “Ok, let’s begin.”? Or the time the real business of the meeting starts? Does kibitzing count? ▰

7. It is critical that you trust the data. 7 COLLECT DATA

8. Sooner , you’ll be ready to start drawing some pictures. ▰ Here, a plot represents the date and time of a meeting versus the number of minutes late. ▰ 8

9. Now return to the question and develop summary statistics. ▰ In this case, “Over a two-week period, 10% of the meetings I attended started on time. And on average, they started 12 minutes late.” ▰ 9

10. DON’T stop here 10

11. Answer the “so what?” question. ▰ In this case, “If those two weeks are typical, I waste an hour a day. And that costs the company $X/year.” ▰ 11

12. Get a feel for variation. 12 A few meetings start right on time, others nearly a full 30 minutes late but the variation is too great.

13. ““What else does the data reveal?” 1313

14. “What else does the data reveal?” Five meetings that began exactly on time were called by the Vice President of Finance. Evidently, she starts all her meetings on time. ▰ 14

15. Are your results consistent with others’ experiences in the company? Which starts later: conference calls or face-to-face meetings? Are some days worse than others? 15

16. Return to step one, pose the next group of questions, and repeat the process. Keep the focus narrow — two or three questions at most.

17. 17 THANKS!

18. CREDITS Special thanks to all the people who made and released these awesome resources for free: ▰ Presentation template by SlidesCarnival ▰ Photographs by Startup Stock Photos 18

19. PRESENTATION DESIGN This presentation uses the following typographies and colors: ▰ Titles: Roboto Condensed ▰ Body copy: Roboto Condensed You can download the fonts on this page: https://material.io/guidelines/resources/roboto-noto-fonts.html Navy #3f5378 · Dark navy #263248 · Yellow #ff9800 You don’t need to keep this slide in your presentation. It’s only here to serve you as a design guide if you need to create new slides or download the fonts to edit the presentation in PowerPoint® 19

20. SlidesCarnival icons are editable shapes. This means that you can: ● Resize them without losing quality. ● Change line color, width and style. Isn’t that nice? :) Examples: 20

21. Now you can use any emoji as an icon! And of course it resizes without losing quality and you can change the color. How? Follow Google instructions https://twitter.com/googledocs/status/730087240156643328 ✋👆👉👍👤👦👧👨👩👪💃🏃💑❤😂 😉😋😒😭👶😸🐟🍒🍔💣📌📖🔨🎃🎈 🎨🏈🏰🌏🔌🔑 and many more... 😉 21

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