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Μαθηματικά και Αξιολόγηση ACT - Αριθμητική και Στατιστική

Εδώ θα μάθετε μερικές αγγλικές λέξεις που σχετίζονται με την αριθμητική και τη στατιστική, όπως "εκτίμηση", "διάμεσος", "διαιρετό" κ.λπ. που θα σας βοηθήσουν να κάνετε άσσο στα ACT σας.

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ACT Vocabulary for Math and Assessment
integer

any number without fractions or decimals, including positive numbers, negative numbers, and zero

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fraction

a part of a whole number, such as ½

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decimal

(mathematics) a number less than one, called a fraction, that is represented as a period followed by the number of tenths, hundredths, etc.

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mean

(mathematics) the average value of a set of quantities calculated by adding them, and dividing them by the total number of the quantities

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average

calculated by adding a set of numbers together and dividing this amount by the total number of amounts in that set

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mixed number

a combination of a whole number and a proper fraction

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prime number

a number greater than 1 with only two devisors which can be itself or 1

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rational number

a number that can be expressed as the fraction of two integers

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irrational number

a number incapable of being expressed as a ratio of two integers

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complex number

a number that has both a real part and a part involving a unit that, when squared, gives a negative result

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real number

any number that can be found on the number line, including both positive and negative numbers, zero, and fractions

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whole number

any positive number without fractions or decimals, including zero

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root

a value that, when multiplied by itself a specified number of times, results in the given number

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range

the difference between the highest and lowest values in a set of numbers

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solution

a correct answer to a problem in mathematics or a puzzle

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product

the result of multiplying two or more numbers or quantities together

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factor

(mathematics) one of the numbers that another number can be divided by

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value

(mathematics) an amount that is shown by a sign or letter

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inequality

a statement that compares two quantities, expressions, or values and indicates their relative sizes

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equation

(mathematics) a statement indicating the equality between two values

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minimum

having the least or smallest amount possible

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exponential

a mathematical expression where a number is multiplied by itself a certain number of times determined by a variable

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arithmetic sequence

a sequence of numbers in which the difference between any two consecutive terms is constant

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divisible

having the quality of being divided, especially by a number

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to square

to multiply a value or number by itself

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improper fraction

a fraction where the the top number is greater than or equal to the equal to the bottom number

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quotient

the result obtained by dividing one quantity or number by another, expressed as the outcome of a division operation

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common ratio

the constant ratio between consecutive terms

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common multiple

a number that is a multiple of two or more given numbers

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common factor

a number that divides exactly into two or more given numbers without leaving a remainder

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common denominator

(mathematics) a number divisible by all the numbers that are below the line in a set of fractions

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least common denominator

the smallest positive integer that is a common multiple of the denominators of two or more fractions

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probability

(mathematics) a number representing the chances of something specific happening

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median

a statistical measure that represents the middle value of a data set when the values are arranged in ascending or descending order

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mode

the value that appears most frequently in a data set

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bimodal

having or involving two distinct modes, peaks, or most frequent values

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to estimate

to guess the value, number, quantity, size, etc. of something without exact calculation

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frequency

the number of times a particular event occurs within a specific period or among a set of observations

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distribution

(statistics) the way statistical data are arranged that shows the frequency in which the values of a variable are repeated

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standard deviation

a measure of how much the values in a set typically differ from the average

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margin of error

the range within which the true value is expected to fall, accounting for potential inaccuracies in measurement or sampling

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random

occurring in such a way that each possible outcome has a certain probability of occurring, but the specific outcome cannot be predicted with certainty

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trend line

a straight line drawn through a set of data points on a graph to represent the general direction or pattern of the data

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dot plot

a type of statistical chart consisting of dots that represent individual data points

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linear model

a mathematical representation that describes the relationship between two or more variables using a linear equation

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