vocab 1
What is the definition of the word "Domain"?
The set of input values (x-values).
What is the definition of the word "Relation"?
A set of ordered pairs.
An ordered set of numbers that have a common difference between each consecutive term.
What is the recursive formula?
an= an-1 + d where a1=?
What does the term "Correlation Coefficient" mean?
Number between -1 and 1 that indicates direction and strength of a linear relationship.
What does the term "Many to one" mean?
Not a function.
What is the definition of the word "Sequence"?
An ordered list of numbers that often forms a pattern.
Write a recursive and explicit formula for the arithmetic sequence.
9,15,21,27...
an = an-1 + 6 where a1=9
an = 9 +(n-1)6
What is the explicit formula?
What makes an association possitive?
All the x-values are increasing as the chart goes on.
What is the definition of the word "Discrete"?
Includes only whole numbers or integers for the domain (points).
What does the term "common difference" mean?
The difference between any 2 consecutive terms is a constant.
What is an interpolation?
An estimate of a value within a range of known values
What is the formula to determine weather an association is strong positive or strong negative?
-1 ≤ r ≤ 1
Describe the correlation of the coefficient
r= 0.875
strong positive
What is the definition of the word "causation"?
Cause and effect relationship. If one variable changes then so does the other.
What is the definition of the word "Extrapolation"?
Uses model to make prediction about a value outside the range of known values.
What is extrapolation?
Uses a model to make a prediction about a value outside the range of known values.
What does a1 equal in the arithmetic sequence
7,0,-7,-14...
a1= 7
Describe the correlation of the coefficient
r= -0.043
Weak possitive
What is the definition of the word "Bivariate"?
A set of data that uses two variables.
What does the term "Linear Regression"?
A method used to calculate the best fit of the line.
Wright the recursive formula for the arithmetic sequence
12,23,34,45...
an = an-1 + 11 a1 = 12
4,8,12,16...
4
Describe the correlation of the coefficient
r= -0.976
strong negative