MATH225 EXAM 2026 HYPOTHESIS
TESTING CONFIDENCE INTERVALS
TOOLKIT GRADED A+
◉ Qualitative.
Answer: Data in the form of words
◉ Parameter.
Answer: Constant value, influences the output or behavior of a
mathematical object
◉ Discrete.
Answer: Data that can be counted but not measured (ex. number of
students in a class)
◉ Continuous.
Answer: Data that can be measured, infinite number of possible
values (ex. height, weight)
◉ Bivariate.
Answer: Involving two variables, simplest form of quantitative
analysis
, ◉ Disjunction.
Answer: A compound statement that uses the word OR, only one
statement must be true for entire statement to be true
◉ Conjunction.
Answer: A compound statement that uses the word AND, both
statements must be true for entire statement to be true
◉ Chord.
Answer: A segment whose endpoints lie on the circumference of a
circle
◉ Secant of a circle.
Answer: A line that intersects a circle in two distinct points
◉ Tangent of a circle.
Answer: A line in the plane of a circle that intersects the circle in
exactly one point
◉ Arc of circle.
Answer: Two points on a circle and the continuous (unbroken) part
of the circle between the two points on the circle's circumference
TESTING CONFIDENCE INTERVALS
TOOLKIT GRADED A+
◉ Qualitative.
Answer: Data in the form of words
◉ Parameter.
Answer: Constant value, influences the output or behavior of a
mathematical object
◉ Discrete.
Answer: Data that can be counted but not measured (ex. number of
students in a class)
◉ Continuous.
Answer: Data that can be measured, infinite number of possible
values (ex. height, weight)
◉ Bivariate.
Answer: Involving two variables, simplest form of quantitative
analysis
, ◉ Disjunction.
Answer: A compound statement that uses the word OR, only one
statement must be true for entire statement to be true
◉ Conjunction.
Answer: A compound statement that uses the word AND, both
statements must be true for entire statement to be true
◉ Chord.
Answer: A segment whose endpoints lie on the circumference of a
circle
◉ Secant of a circle.
Answer: A line that intersects a circle in two distinct points
◉ Tangent of a circle.
Answer: A line in the plane of a circle that intersects the circle in
exactly one point
◉ Arc of circle.
Answer: Two points on a circle and the continuous (unbroken) part
of the circle between the two points on the circle's circumference
