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NYU Statistics & Data Analysis Exam Questions & Answers 2024/2025
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NYU Statistics & Data Analysis Exam Questions & Answers 2024/2025
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NYU Statistics & Data Analysis ExamQuestions & Answers 2024/2025
Statistics - ANSWERSUsing samples to make a statement about populations
Population - ANSWERSThe world
Sample - ANSWERSMeasurements of the world
Gold standard of sample - ANSWERSRepresentative, i.e. one with the same characteristics as the
population
Realistic standard for representative sample - ANSWERSUnbiased, meaning every member of the
population has the same chance of appearing in the sample
Selection bias - ANSWERSSome members of the population are more likely surveyed
Voluntary response bias - ANSWERSSome members of the population are more likely to respond to the
survey
Columns in a data table - ANSWERSVariables
Rows in a data table - ANSWERSObservations/cases
Categorical variable - ANSWERSValue is a label indicating group membership, i.e. gender
Numerical variable - ANSWERSValue is on a meaningful numerical scale
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