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Math Vocab Review OA

7th/8th grade review

QuestionAnswer
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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