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22 Cards in this Set
- Front
- Back
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Statistics |
A branch of mathematics that deal with collecting, organizing, analyzing and interpreting data in order to draw conclusions and make predictions. |
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Census |
Is the process of gathering information about an entire population. When the population is made up of objects, this process is called an inventory. |
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Population |
Is the group of living organisms or objects on which a statistical study is based. |
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Variable |
Is the focus of the search for data. There are two types of variables: Qualitative (words) and Quantitative (numbers). |
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Range |
Measure of the difference between the two most extreme values in a data distribution: (highest data value) - (lowest data value). |
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Categories |
are the different forms that the data collected can take when the variable studied is qualitative. If the variable is quantitative, it is generally referred to a "value." |
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Bar Graphs |
Are commonly used to illustrate the catagories of a qualitative variable. |
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Broken-line graphs |
Used to represent phenomena that change over time. |
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Exponents |
The opperation that consists of multiplying a number by itself a given number times is calle exponentiation. Exponential notation is used to write the product of several identical factors in an abbreviated form. |
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Factorization |
The factorization of a number is an expression of this number as the product of factors. |
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Prime number |
Has exactly two divisors |
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Composite numbers |
More than two divisors |
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Average |
A type of measurement that conveys the idea of equal distribution. |
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Number line |
Useful for comparing the order of two integers. Farthest to the left is less than the other. Farthest to the right is greater than the other. |
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Origin |
The intersection point of two lines |
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Quadrants |
Two graduated lines divide the cartesian plane into four regions which are called quadrants. |
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Abscissa |
x-axis |
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Ordinate |
Y-axis |
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Quadrant 1 |
+,+. |
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Quadrant 2 |
-,+. |
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Quadrant 3 |
-,- |
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Quadrant |
+,-. |
