Statistics and Probability
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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| Probability | Measures the likelihood of an event happening.
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| Theoretical Probability | How likely something is "supposed" to happen.
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| Experimental Probability | How likely something "does" happen.
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| Survey | A question or set of questions used to gather data or pieces of information.
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| Population | The group being surveyed.
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| Sample | A smaller group from a population. The sample is supposed to represent the population.
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| Random Sample | A sample in which each individual in the selected population has the same chance of being part of the sample.
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| Biased Sample | A sample in which members of the population have a greater chance of being selected for the sample than other members.
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| Actual Error | The difference between the actual measure/amount and the estimated.
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| Relative Error | The quotient of the actual error and the actual measure/amount, often expressed as a percent.
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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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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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