SHMS 7th Grade Math Vocab 3
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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| Box Plots | A diagram that summarizes data using the median, the upper and lower quartiles, and the extreme values (minimum and maximum). It is constructed from the five-number summary of the data
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| Frequency | the number of times an item, number, or event occurs in a set of data
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| Histogram | a way of displaying numeric data using horizontal or vertical bars so that the height or length of the bars indicates frequency. The bars touch because the data is grouped into intervals.
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| Inter-Quartile Range (IQR) | The difference between the first and third quartiles of a data set
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| Skewed Data | When a set of data is not symmetrical it can be skewed, meaning it tends to have a long tail on the left or right side.
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| Mean | The “average” or “fair share” value for the data.
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| Measures of Center | The mean and the median are both ways to measure this for a set of data. It is best to use the mean when there are no outliers in the data set.
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| Measures of Spread (Variation) | The range and the mean absolute deviation are both common ways to measure this for a set of data.
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| Median | The value for which half the numbers are larger and half are smaller. If there are two middle numbers, it is the arithmetic mean of the two middle numbers. Note
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| Mode | The number that occurs the most often in a list. There can be one, more than one, or none.
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| Outlier | A value that is very far away from most of the values in a data set. It will skew the mean.
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| Population | A group of people, objects, or events that fit a particular description.
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| Range | A measure of spread for a set of data. To find the this, subtract the smallest value from the largest value in a set of data.
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| Sample | A part of the population that we actually examine in order to gather information.
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| Simple Random Sampling | Consists of individuals from the population chosen in such a way that every set of individuals has an equal chance to be a part of the sample actually selected. Poor sampling methods can lead to misleading conclusions.
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| Stem and Leaf Plot | A graphical method used to represent ordered numerical data. Once the data are ordered, the stem and leaves are determined. Typically the stem is all but the last digit of each data point and the leaf is that last digit.
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| Adjacent Angle | Angles in the same plane that have a common vertex and a common side, but no common interior points. (Side by side)
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| Circumference | The distance around a circle.
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| Complementary Angle | Two angles whose sum is 90 degrees.
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| Congruent | Having the same size, shape and measure.
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| Inference | A conclusion, estimate, or prediction based on data.
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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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Created by:
hbogue
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