Unit 10 Vocabulary
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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| Mean | The sum of a set of data points divided by the number of data points. (Also known as average)
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| Median | The middle number or the mean of the two middle numbers in an ordered set of data.
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| Population | The entire group of people or things that are being analyzed.
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| Sample | Part of the population upon which an experiment or survey is conducted.
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| Survey | Method to collect data from a sample or population to study some characteristics of the group.
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| Representative Samples | A subset of a population that reflects the members of the entire population.
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| Unbiased Sample | A sample collected in such a way that some members of the intended population have a fair opportunity to be included in the sample as others.
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| Biased Sample | A sample collected in such a way that some members of the intended population are less likely to be included than others.
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| Simple Random Sampling | A part of a population chosen randomly and entirely by chance. Each member of the subgroup has an equal opportunity to be chosen.
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| Stratified Random Sampling | A part of a population chosen by placing the population into subgroups and then choosing randomly. Each member of the subgroup has an equal opportunity to be chosen.
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| Systematic Random Sampling | A part of a population chosen by fixed intervals where each member has an equal opportunity to be chosen.
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| Draw Inference | To make a conclusion through observation and reasoning.
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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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