Regressive Ideas
This number tells you how well an approximation fits the set of data.
What is the correlation coefficient (R^2)?
This type of function is characterized by a constant rate of change.
What is a linear function?
This type of chart is drawn as a circle with "slices" representing relative frequencies of data.
What is a pie chart?
The value of x when 10/x=2.
What is 5?
These kinds of lines do not have a simultaneous solution.
What are parallel lines?
Positively correlated data could be described in this way.
What is increasing? (Answers may vary)
This linear function contains the points (0,3) and (4,3).
What is y=3?
This type of chart consists of independent data points plotted on a 2-dimensional plane.
What is a scatter plot?
A value of x when x^2 = 9.
What is 3 or -3?
This solution method works by scaling and then adding the equations together to hopefully simplify and remove a variable.
What is Elimination?
The slope of a linear regression line for the following data.
(1,0), (1.1,.2), (1.2,.5), (1.4,1), (1.55,1.2)
What is m=2.275?
This linear function contains the points (1,2) and (2,4).
What is y=2x?
This type of chart consists of boxes where the height of a box represents the number of observations of the corresponding variable.
What is a bar chart?
The value of y when y = x^2+2x and x=3.
What is y= 15?
The solution to the system of equations
y=2x+1
x+y=4
What is (1,3) or x=1, y=3?
The correlation coefficient for the following data.
(1,0), (1.1,.2), (1.2,.5), (1.4,1), (1.55,1.2)
What is r=0.9938 or R^2=.9877?
This linear function contains the points (0,5) and (10,0).
What is y=-1/2x+5?
This type of chart consists of boxes where the height of a box is determined by how many observations fall into a particular numerical range.
What is a histogram?
The value of 1/sqrt(x) when x=16.
What is 1/4?
The solution to the system of equations
x+2y=8
3x-2y=8
What is (4,2) or x=4, y=2?
The output corresponding to an input of x=1.3 for the linear regression line for the following data.
(1,0), (1.1,.2), (1.2,.5), (1.4,1), (1.55,1.2)
What is y=0.69375?
This linear function contains the points (1,1), (2,3), and (3,5).
What is y=2x-1?
**DAILY DOUBLE**
**DAILY DOUBLE**
The values of x when x^2-3x+4=0.
What is x=4 and x=-1?
The solution to the system of equations
3x+2y=5
6x+4y=12
What is DNE?