Elementary Statistics 2004
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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show | Observations (such as measurements, genders, survey responses) that have been collected
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Statistics | show 🗑
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Population | show 🗑
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Population | show 🗑
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Census | show 🗑
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show | A subcollection of members selected from a population
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Sample data | show 🗑
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show | the data may be so completely useless that no amount of statistical torturing can salvage them
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TYPES OF DATA??? | show 🗑
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show | A numerical measurement describing some characteristic of a population.
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Parameter | show 🗑
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Statistic | show 🗑
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Based on a sample | show 🗑
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show | Data consists of numbers representing counts or measurement
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show | weights of supermodels
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Interval level of measurement | show 🗑
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Interval level of measurement | show 🗑
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show | shoe sizes [US vs Europe] and temperature
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show | can be either discreet or continuous
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show | Data that can be arranged in order, for which differences between data values are meaningful, and there is an inherent zero starting point.
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Ratio level of measurement | show 🗑
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show | prices of textbooks; $50 is half of $100
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Ratio level of measurement | show 🗑
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show | is continuous.
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show | HIGHEST LEVEL OF DATA
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Ratio level of measurement | show 🗑
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show | can be further distinguished between discrete and continuous.
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show | Data that results when the number of possible values is either a finite number or a “countable” numbers.
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Discrete Data | show 🗑
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show | number of eggs that hens lay
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Continuous (numerical) Data | show 🗑
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show | Results from infinitely many possible values that correspond to some continuous scale that covers a range of values without gaps, interruptions, or jumps.
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Continuous (numerical) Data | show 🗑
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show | Can be separated into different categories that are distinguished by some nonnumerical characteristics.
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Continuous (numerical) Data | show 🗑
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Nominal Level of Measurement | show 🗑
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show | Lowest form of data. Has groups, but no ordering to the groups
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Nominal Level of Measurement | show 🗑
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Nominal Level of Measurement | show 🗑
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Nominal Level of Measurement | show 🗑
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show | (Categories & groups, but with some natural order to the groups.)
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show | Course grades – Grades of A, B, C, D, or F
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Ordinal Level of Measurement | show 🗑
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show | Discrete
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Temperature is | show 🗑
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show | usually Discrete
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Man on the street samples are | show 🗑
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Misuses of Statistics | show 🗑
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show | Order of Questions
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show | Precise NumbersPartial picturesDeliberate Distortions
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show | typically plays a critical role in determining which data to collect.
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Observational Study | show 🗑
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show | Data are observed, measured, and collected at one point in time.
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Retrospective (or Case Control) Study | show 🗑
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Prospective (or Longitudinal or Cohort) Study | show 🗑
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show | Apply some treatment and then observe its effects on the subjects. (Experimental group.) Doing something to affect what happens.
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Experimental Key Elements | show 🗑
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control | show 🗑
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show | Occurs in an experiment when the experimenter is not able to distinguish between the effects of different factors.
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Blinding | show 🗑
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Double-blind | show 🗑
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show | Groups of subjects with similar characteristics
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Completely Randomized Experimental Design | show 🗑
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Rigorously Controlled Design | show 🗑
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show | Selection so that each has an equal chance of being selected
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Simple Random Sample | show 🗑
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show | Select some starting point and then select every Kth element in the population
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show | 7th person of a group of 10; i.e., 7, 17, 27, 37, etc., OR every 7th person i.e., 7, 14, 21, 28, etc
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show | Use results that are easy to get, choosing the first 10 people who get off work
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Stratified Sampling | show 🗑
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Cluster Sampling | show 🗑
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show | The difference between a sample result and the true population result; such an error results from chance sample fluctuations
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show | Sample data that are incorrectly collected, recorded, or analyzed (such as by selecting a biased sample, using a defective instrument, or copying the data incorrectly
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
mcb