ALEKS Math Placemen Exam with verified solutions 2024

ositive Number Any number greater than zero Negative Number Any number less than zero Whole Number Any "counting number" or zero Integer The whole numbers and their opposites Even Number Any integer divisible by 2 Odd Number Any integer not divisible by 2 Sum The result of two numbers being added Difference The result of one number being subtracted by another Product The result of two numbers being multiplied Quotient The result of one number being divided by another Factor A number that is multiplied to form the product Greatest Common Factor The greatest whole number that is a factor of two or more numbers Multiples The product of a number and a counting number Least Common Multiple The least whole number that is a multiple of two or more numbers Prime A number greater than one whose only whole number factors are one and itself Composite A number greater than one with more than two whole number factors Real All positive and negative numbers and zero Rational Any number that can be expressed as the quotient of two integers Irrational Real numbers that are not rational How to find Percent Increase or Decrease Difference/Original = Percent Increase or Decrease Exponents and Roots pg. 33 Logarithms pg. 35 Average Problems Average x Number = Total Simple Probability Problems Outcomes giving desired result/Total possible outcomes Conditional Probability The probability of an event, given another event has already occurred. Ex: The probability that a playing card from a standard deck is a 5, given that it is red, is 2/26. Joint Probability The probability of two events occurring at the same time. Ex: The probability that a playing card from a standard deck is red and a 5 is 2/52.