Flashcards
Untitled
Cards in this deck (26)
- 1Dataare collections of observations, such measurements or genders.
- 2Statisticsis the science of planning studies and experiments. obtaining data and then organizing that data and then drawing conclusions about the data
- 3PopulationIs the complete collection of all measurements or data that are being considered.
- 4censusis the collection of data from every member of the population
- 5sampleis a sub collection of members from a population
- 6voluntary response sample(self selected sample)
is when the respondents decide if they want to participate - 7Statistically significantif the probability is extremely low and it happens
- 8parameteris a numerical measurement describing some characteristic of a population
- 9statisticis a numerical measurement describing some characteristic of a population
- 10censuscollection of data from every member of the population
- 11samplea sub collection of a member selected from a population
- 12quantitative(numerical data)
consists of numbers representing counts or measurements - 13categorical(qualitative or attribute) data
consist of names or labels that are not numbers representing counts or measurements - 14discrete datadata that is countable. the number of trees on a lot amount of eggs
- 15continuous numerical datahow many stars are in the sky
- 16ordinaldata arranged in order but different between data cant be determined. A,B,C
- 17intervaltemperature natural starting point 0 isn't a natural starting point
- 18Rationatural 0 staring point
- 19Nominalcategories only data cant be arranged in order. Example: eye colors
- 20observational studypeople measure specific characteristics but they don't attempt to modify the subject being studied
- 21experimentwe apply some treatment and then proceed to observe its effect on the subject.
- 22random sampleeach member of the population has an equal chance of being selected
- 23systematic samplingselect a starting point then select every th. example: every 50th toy
- 24convince samplingusing results that are easy to get
- 25stratified samplingsub divide the population into at least 2 different sub groups
- 26cluster samplingdivide the population into sections (or clusters) then randomly select some of those clusters
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- Flashcards on Untitled, created by lecaviness992 on 08/09/2014.
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