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DATA1001 (24)

# Class Notes for DATA1001 at University of Sydney

Foundations of Data Science

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##### DATA1001 Lecture Notes - Lecture 13: Scatter Plot, Standard Deviation, Dependent And Independent Variables

Lecture 13 The Scatter Plot and Correlation Data story: Can we predict a sons height from his fathers height? What do you notice about the heights? Plotting the pairs of heights creates a cloud of points. Generally, taller...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture Notes - Lecture 11: Standard Deviation, Kilogram, Measuring Instrument

Lecture 11: Measurement Error Data story: Is Coles overcharging me? Data Here we simulate the weight of 20 trays of lamp chops from Coles, using pricing from 221117. set.seed(1) chopweight = rnorm(20, 550, 5) chopweight [...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture Notes - Lecture 19: Conditional Probability, Almost Surely

Lecture 19 Chance Data Story: Did OJ murder his wife? ProsecutorsFallacy The prosecutorsfallacy is a mistake instatistical thinking, whereby itis assumedthatthe probability of a random match is equal to the probability tha...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture Notes - Lecture 16: Standard Deviation, Normal Distribution, Homoscedasticity

Lecture 16 The Residual Plot A residualis the vertical distance (or gap) of a pointabove andbelow the regressionline. Itrepresents the error between the predictionand the actual value. Eg.Ifthe actual val ue is 67 and the ...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture Notes - Lecture 10: Normal Distribution, Normality Test

Lecture 10 -The Normal Curve Data Story: Howlikely is to findan elite netball goal player in Australia? The Normal Curve The Normal curve was discovered around 1720 byAbraham de Moivre The Normal curv...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture Notes - Lecture 7: Standard Deviation, Box Plot

Lecture 7 -Centre Data story: How much does a property in Newtown cost? The type of people who would be interested in this data: Stakeholders Investors Possible research questions: ...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture Notes - Lecture 5: Scatter Plot, Box Plot

Lecture 5: Quantitative Data Data Story: Australian Fatalities Histogram Higher boxes= more data = crowding We use a histogram for quantitative data. A histogram highlights the percentage of data in one ...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture Notes - Lecture 6: Data Visualization, Domain Knowledge, Scatter Plot

Lecture 6: Data Visualization Data story: What is the price point for a diamond? Domain knowledge: Demandis predicted outweigh supplyof diamonds Interms of usage anddemand, 30% of diamonds are needed forjew...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture Notes - Lecture 9: Web Scraping, Data Scraping, Data Wrangling

Lecture9:DataWrangling Data Wrangling Data wrangling is whatever is needed to get the data ready for analysis. o It is also called data munging or data janitor work. o Involves: ...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture 3: Lecture 3- Observational Studies

Lecture 3: Data Story: Does Smoking Cause Cancer? Observational study: Where the investigator cannot use randomization for allocation to groups. To study the effects of smoking, investigators cannot choose which subjects w...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture 2: Lecture 2- Controlling Data

Lecture 2: Controlling Data Data story: Does an antiacne drug cause depression? Domain knowledge Questions on Roaccutane might include: What is Roaccutane prescribed for and how does it chemically work? What are known side...

Data Science
DATA1001
Di Warren
##### DATA1001 Lecture 13: Tests for Relationships Premium

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DATA1001
Di Warren
##### DATA1001 Lecture 12: Tests for Relationships Premium

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DATA1001
Di Warren
##### DATA1001 Lecture 11: Tests for Mean Premium

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Data Science
DATA1001
Di Warren
##### DATA1001 Lecture 10: Hypothesis Testing Premium

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Data Science
DATA1001
Di Warren
##### Laboratory Basics - Reference Guides

Lab safety is the cornerstone principle in this compelling Guide. All international safety symbols are clearly defined, with all basic lab glassware and equipment depicted by text description and diagrams. The Guide also p...

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