'Biased' diaporamas de présentation

Data Mining in Market Research

Data Mining in Market Research. What is data mining? Methods for finding interesting structure in large databases E.g. patterns, prediction rules, unusual cases Focus on efficient, scalable algorithms Contrasts with emphasis on correct inference in statistics

1.05k views • 55 slides

Part 3: Qualitative Research

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3.4 The Components of the OLS Variances: Multicollinearity

3.4 The Components of the OLS Variances: Multicollinearity. We see in (3.51) that the variance of B j hat depends on three factors: ? 2 , SST j and R j 2 : The error variance, ? 2 Larger error variance = Larger OLS variance

462 views • 28 slides

Populations & Samples

352 views • 27 slides

Improving ISP Locality in BitTorrent Traffic via Biased Neighbor Selection

Improving ISP Locality in BitTorrent Traffic via Biased Neighbor Selection. Ruchir Bindal, Pei Cao , William Chan Stanford University Jan Medved, George Suwala, Tony Bates, Amy Zhang Cisco Systems, Inc. P2P and ISPs: Not Friends.

444 views • 25 slides

Lecture 3

388 views • 25 slides

AC12, Unit 3

396 views • 23 slides

Planning for the Affordable Care Act: Impact on Oncology

Planning for the Affordable Care Act: Impact on Oncology. Gerald F. Kominski, Ph.D. Professor, UCLA Fielding School of Public Health, and Director, UCLA Center for Health Policy Research April 15, 2014. March 23, 2010. President Obama Signing the ACA into Law.

336 views • 22 slides

CHAPTER ---2

COLLECTION OF DATA. CHAPTER ---2. INTRODUCTION.

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Computer Organization CS224

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acab

acab. acab. cab. a. Authority Who is the author/responsible for creating the website? What are their qualifications and associations? Are they: Recognised organisation (.org) Company (.co or .com) Academic Institution (.ac) Government (.gov) Wee Jimmy doing his school report!

292 views • 11 slides

Dress Code at ETHS

Dress Code at ETHS. Emily, Jenna, Jamie, Jermya, Darius. The Questions We Asked: Students. Do you know the dress code? Have you been dress coded? How many times in a year have you been dress coded? What is the most common reason to be dress coded? Is the dress code biased?. 2.

644 views • 11 slides

Are Juab Girls Lazy?

Are Juab Girls Lazy?. Kevin Baird and Shane Whitlock. In our survey we wanted to know if giving someone more work to do when answering a survey would change the results.

221 views • 9 slides

Are Juab Girls Lazy?

Are Juab Girls Lazy?. Kevin Baird and Shane Whitlock. In our survey we wanted to know if giving someone more work to do when answering a survey would change the results.

174 views • 9 slides

Developing an Informed Opinion

Developing an Informed Opinion. I have the right to heat my home and drive my car. Oil is absolutely essential to my way of life, so nothing should stop oil extraction.

534 views • 8 slides

Music Studies at Juab High

Music Studies at Juab High. By : Jeremy White & Shane Esplin. Reason, Population, Biased / Unbiased. Reason : We conducted this survey to find out what genre of music is most commonly listened to among Juab H igh students. Population : Our Population is all of Juab High School

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Probability Prog. Assignment #1 Biased or Unbiased ?

Probability Prog. Assignment #1 Biased or Unbiased ?. Is the Dealer worth a trust ?. Tzu-Jui Wang Visual Communications Laboratory Department of Communications Engineering, National Central University No. 300, Jhongda Rd., Jhongli City, Taoyuan County 32001, Taiwan (R.O.C.)

558 views • 7 slides

Recall: Desirable properties for parameter estimates

Recall: Desirable properties for parameter estimates. On average, you are right. (note: you can be wrong every time yet be right on average). You may be wrong, but you get better. You are more sure of yourself than anyone else.

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EXAMPLE 2

EXAMPLE 2. Identify a potentially biased sample. In Example 1 , suppose the owners question 50 workers chosen at random from one factory. Is the method likely to result in a biased sample?. SOLUTION.

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????

? ? ? ? ?. ????. ???? ?? ??? ?? SELF-BIASED ???? ?? ??? ???? ??? ?? ???? ??? ?? ??? ??? ?? ?? ??? ???? ??? ???? ??. ????. Element Type : Self-Biased Condensor Frequency Response : 50? ~ 16? Polar Pattern : Cardioid Sensitivity : 7.0?/Pa(-43dBV) Rated Impedance : 200 ?

173 views • 1 slides