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Math Vocab Review OA
7th/8th grade review
| Question | Answer |
|---|---|
| How far a number is from 0 on a number line | absolute value |
| An angle that measures between 0 and 90 degrees | acute |
| When a sampling method is not fair | bias |
| A graph that represents data using quartiles | box and whisker plot |
| The number next to the variable | coefficient |
| Two shapes with the same size, same shape, same angle measurements | congruent |
| A transformation that changes the size of the original shape | dilation |
| Two events that have no outcomes in common | disjoint events |
| This property means to multiple the term on the outside of the parenthesis by everything inside the parenthesis | distributive property |
| In probability, this is the result of experiments/trials | experimental probability |
| In probability, this principle can be used to find the total number of outcomes | Fundamental Counting Principle |
| This graph uses bars to show the frequency of data within equal intervals | histogram |
| Two events in which the first event does not affect the outcome of the second event | independent event |
| Doing the opposite operation | inverse operation |
| numbers that cannot be written as a fraction; a set of real numbers that never ends or repeats | irrational |
| the average of a set of data | mean |
| the most frequent number in a set of data | mode |
| the middle number in a set of data | median |
| the different between the greatest and least number in a set of data | range |
| the difference between the third and first quartile | interquartile range |
| an angle that measures greater than 90 and less than 180 degrees | obtuse |
| a pair of numbers that gives the coordinate of a point on a grid in this order (horizontal coordinate, vertical coordinate) | ordered pair |
| a data point that does not fit in with the rest of the data | outlier |
| two lines on the same plane that never intersect | parallel lines |
| two lines that intersect to form a right angle | perpendicular line |
| a closed figure formed from line segments that meet only at their endpoints | polygon |
| the chance of an event occurring | probability |
| an equation showing that two ratios are equal (use this to solve similar figures and conversions) | proportion |
| a sample in which every event has an equal change of being selected | random |
| the whole group in a sample | population |
| part of the population | sample |
| any number that can be written as a fraction; a real number that repeats or stops | rational number |
| mirror image | reflection |
| a 90 degree angle | right angle |
| to turn a figure | rotate |
| a list of all possible outcomes | sample space |
| a form for writing numbers as the product of a power of 10 and a decimal number greater than or equal to 1 and less than 10 | scientific notation |
| what should happen when testing an experiment | theoretical probability |
| a transformation in which an image is formed by moving every point on a figure the same distance in the same direction | translation |
| a changing quantity, usually a letter in an algebraic equation or expression | variable |
| negative times a positive equals a _____ | negative |
| negative divided by a negative equals a ____ | positive |
| The theorem used to solve for a missing side length on a right triangle (a squared + b squared = c squared) | Pythagorean Theorem |
| part over whole equals percent over 100 | percent chart |
| half the diameter | radius |
| rise over run; change in y over the change in x | slope |
| a number that indicates how many times the base is multiplied by its factor | exponent |
| a line that divides a figure into two congruent halves that are reflections of each other | line of symmetry |
| when a figure can be rotated less than a full turn and still look that the original figure | rotational symmetry |
| the sum of the areas of all the faces of a 3-d figure | surface area |
| the amount of space inside a 3-d object | volume |
Created by:
kimkel
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