GED Math exam |136 questions and answers.

Box plot a way of graphically depicting groups of numerical data through their quartiles Consecutive one following the other, for example, 19 and 20 are consecutive numbers Data a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things Dot plot a graphical display of data using dots Event a set of possible outcomes resulting from a particular experiment. For example, a possible event when a single six-sided die is rolled is {5, 6}. That is, the roll could be a 5 or a 6. Frequency how often something happens (usually during a period of time) Function a special relationship where each input has a single output. It is often written as "f(x)" where x is the input value Graph a diagram that shows a relationship among numbers Histogram a graphical representation of the distribution of numerical data Matrix a rectangular array of numbers or other mathematical objects, for which operations such as addition and multiplication are defined. Mean the sum of a set of numbers divided by the number of numbers in a set (AKA average) Median a number in the middle of a set of numbers, or the mean of the two middle numbers in a set Mode The mode of a set of numbers is the one that occurs most often. So, in the set {1,5,7,5,9}, the mode is 5 because there are 2 fives and only one of each of the others. Periodicity the tendency of a function to repeat itself in a regular pattern at established intervals. Permutation relates to the act of rearranging, or permuting, all the members of a set into some sequence or order (unlike combinations, which are selections of some members of the set where order is disregarded) Probability the chance of an event happening, usually expressed as the ratio of the number of favorable outcomes to the total number of outcomes Proportion a statement that two ratios (or fractions) are equal Rate of change the change in the value of a quantity divided by the elapsed time Scientific notation a number written as the product of a number between 1 and 10 and a power of 10 Standard deviation a measure of how spread out numbers are Table an organized chart or list of numbers Unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity. Some common unit rates are miles (or kilometers) per hour, cost per item, earnings per week, etc. Ratio comparison between two numbers. Separated by a colon (:), the word "to", or may be written in fraction form. Proportion an equation that shows that two ratios are equal. Numbers may change in value, but will keep the same proportional relationship to one another. Cross Products The product of the numbers which are diagonal from one another in a proportion equation. Should be equal on both sides. Common denominator for a set of fractions, a number into which each denominator can divide evenly Denominator the bottom number in a fraction Difference the answer to a subtraction problem Digit one of the ten number symbols. The digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Equation a statement that two amounts are equal Estimate as a noun: an approximate value. as a verb: to find an approximate value. Fraction a part of a whole Greatest common factor the greatest factor that divides two numbers Improper fraction a fraction in which the numerator is greater than or equal to the denominator Least common multiple the smallest positive number that is a multiple of two or more numbers. Example: the Least Common Multiple of 3 and 5 is 15, because 15 is a multiple of 3 and also a multiple of 5. Other common multiples include 30 and 45, etc, but they are not the smallest (least). Mixed number a number with both a whole number and a fraction Numerator the top number in a fraction Product the answer to a multiplication problem Probability the chance of an event happening, usually expressed as the ratio of the number of favorable outcomes to the total number of outcomes