C955 Question and answers already
passed 2026/2027
Basic probability - correct answer #of total come\# of total outcome in the sample space
P(B | A) - correct answer conditional probability
P(A and B)=P(A) • P(B) - correct answer multiplication rule- independent events
P(A and B)= P(A) • P(B|A) - correct answer multiplication rule- dependent events
P(A or B)= P(A) + P(B) - correct answer addition rule- Disjoint
P(A or B)= P(A) + P(B) - P(A and B) - correct answer addition rule- non-Disjoint
product - correct answer The result of multiplying values.
factorization - correct answer The process of determining the prime factors of a composite number.
integer - correct answer "A number, (positive, negative, or zero), that can be represented without a
fractional or a decimal component."
superscript - correct answer A symbol (such as a number or letter) written above and immediately to
the left or right of another character.
,perfect square - correct answer "The product of any integer with itself. . So, a number is a this if it can
be written as the square of an integer. For example, 3 * 3 = 9."
expression - correct answer "A string of terms that are connected by division, addition, and subtraction
operations."
addition - correct answer Finding the total of two or more values.
interval - correct answer A set of numbers between two specified values.
difference - correct answer The result of one number being subtracted from another number.
multi-step expression - correct answer An expression or equation with more than two values and two or
more operators that requires multiple steps to be solved.
discrete - correct answer "A collection of numbers whose values are distinct, separate, and
unconnected."
negative number - correct answer "A number whose value is less than zero. On the number line, they
are to the left of zero."
division - correct answer Splitting values into equal parts or groups.
estimation - correct answer Approximating a value for a calculation
radical sign - correct answer The symbol which indicates to take the square root of the number that
follows.
, numbers - correct answer A word or symbol (such as 'five' or '16') that represents a specific amount or
quantity.
exponents - correct answer "Sometimes called a power, it is a quantity that represents repeated
multiplication."
parentheses - correct answer "In mathematics, these () are used to separate operations within an
expression. Any operations that lie within parentheses should be performed first."
real number - correct answer "Any numbers on the number line. They include zero, negative and
positive integers, fractions, and decimals."
sum - correct answer The result of multiple numbers being added together.
square root - correct answer A number that produces a specified number when it is multiplied by itself.
Fundamental Theorem of Arithmetic - correct answer A concept which states that any integer greater
than 1 is either prime or is the product of a unique set of prime numbers.
prime number - correct answer A number with only two factors: one and itself.
operator - correct answer A word or symbol (such as + or -) that indicates an operation between values.
principal square root - correct answer "The positive square root of a number. For example, the principal
square root of 36 is 6."
whole number - correct answer A number whose value is 0 or greater (negative numbers are not
considered this), and can be represented without a fractional or a decimal component.