Fichas
Stats chapter 1
Fichas del conjunto (39)
- 1Characteristics of the individual to be measured/observed is?variable
- 2Entire group to be studiedPopulation
- 3Subset of population that is being studiedSample
- 4People or objects inculded in the studyIndividuals
- 5Describe data through numerical summaries, tables and graphsDescriptive Statistics
- 6Methods that take a result from the sample, extend it to the population and measure the reliability of the resultsInferential Statistics
- 7Population mean symbol"Mu" or weird M
- 8Population variance sigma symbolσ2
- 9Population standard deviation symbolσ
- 10Population proportion "rho" symbolp
- 11Population size symbolN
- 12Sample mean symbolx̄
- 13Sample variance symbols^2
- 14Sample standard deviation symbols
- 15Sample proportion symbolp̂
- 16Sample size symboln
- 17What are the two qualitative variables?Nomial and Ordinal
- 18Qualitative isneither discrete or continuous
- 19Nomialname only
Example: hair color - 20OrdinalNatural order
Example: size L,M,S - 21Example of Qualitative, neither, ordinalFrequency of marijuana use (daily, weekly, monthly)
- 22Example of qualitative, neither, nominalWhether a person covers his or her mouth when sneezing (yes, no)
- 23What are the two variables of quantitative variables?Discrete and continuous
- 24DiscreteCounted
Example: # of heart attacks 1,2,3 - 25ContinuousMeasured
Example: weight x greater than or equal to 0 - 26Quantitatives two levels of measurement are?Interval and Ratio
- 27IntervalExample: degree F or C, year
Zero is meaningless - 28RatioExample: wight, Kelvin
Zero is meaningfull (true zero) - 29Example of quantitative, continuous, ratioNasal secretion weight (g).
- 30Example of quantitative, continuous, intervalSub-lingual temperature is degrees celcius
- 31Example of quantitative, discrete, ratioNumber of tissues used during a cold
- 32Each number of the population has an equal chance of being selectedRandom sampling
- 33A numerical facsimile or representation of a real-world phenomenonSimulation
- 34Seperate population into non-overlapping groups obtain a simple random sample from each groupStratified Sampling
- 35Select every #th individualSystematic
- 36Select ALL individuals in a randomly selected collection or groupcluster
- 37Combine sampling methodsMultistage Sampling
- 38Convience samplingresults should be varified, self selected
- 39—
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- Fichas sobre Stats chapter 1, creado por Ashleigh McDevitt el 10/09/2024.
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- Ashleigh McDevitt
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