Data About Us
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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| Attribute | A characteristic or feature that is being investigated
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| Box-and-whisker plot | A display that shows the distribution of values in a data set separated into four equal-size groups
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| Categorical data | Non-numerical data sets. Example: Eye color, favorite book, month people are born
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| Cluster | A group of numerical data values that are close to one another
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| Data | Values such as counts, ratings, measurements, or opinions that are gathered to answer questions
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| Distribution | The entire set of collected data values, organized to show their frequency of occurrence
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| Frequency table | A table that lists all data values, and uses tally marks to show the number of times each data value occurs
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| Gap | A value or several consecutive values, between the minimum and maximum observed data values, where no data value occurred
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| Histogram | A display that shows the distribution of numeric data. The range of data values, divided into intervals, is displayed on the horizontal axis. The vertical axis shows the frequency in numbers or percents.
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| Interval | A continuous group of numbers. Example: 0-5, 5-10, 10-15, 15-20
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| Line plot | A way to organize data along a number line where the X's above a number represent how often each value is mentioned.
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| Maximum value | The data item with the greatest value in the data set
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| Mean | The value found when all the data are combined and then redistributed evenly. This value is calculated by finding the sum of all values and dividing by the number of values in the data set.
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| Median | The middle number in an ordered set of data
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| Minimum value | The data item with the least value in a data set
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| Mode | The value that appears most frequently in a set of data
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| Numerical data | Values that are numbers such as counts, measurements, and ratings. Example: Number of siblings, heart rate, height, number of texts sent per week
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| Outlier | A value that lies far from the "center" of the distribution and is not like the other values. It is a data point that is much higher or much lower than the values that are normally expected in the data set
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| Range | The difference between the maximum and minimum value in a data set
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| Skewed distribution | Any distribution that is not symmetrical about the mean
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| Symmetric distribution | A distribution in which the mean and median are the same or almost the same, and in which the values above and below the mean form an approximate mirror image
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| Table | A tool for organizing information in rows and columns.
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| Variability | An indication of how widely spread or closely clustered the data values are
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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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Created by:
vinborg
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