Ch1
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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Statistics | Science of collecting, organizing, summarizing, analyzing information
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Population | entire group of individuals
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Sample | subset of the population
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Descriptive Statistics | organizing and summarizing data
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Inferential Statistics | a result from a sample
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Parameter | numerical summary of a population
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Qualitative, or categorical variables | classification based on attributed characteristic
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Quantitative variables | numerical measures of individuals such as arithmetic operations
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Discrete variable | countable as in gender
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continuous variable | measurement as in height
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Validity | how close to the true value the measurements is
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Reliability | ability of different measurements of the same individual to yield the same results
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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.
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.
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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