What is the term used for a piece of data that does not fit with the rest of the data?
Outlier
Determine the associations shown in the scatter plot below.
Positive/Linear
Make a prediction for the altitude of the balloon at 2 minutes.
434 ft
Acceptable: 430-440
Write an equation for the trend line for the scatter plot below, given points (0,0) and (5, 20).
y=4x
Determine the number of females with 2-door model cars.
44
When creating a line of best fit you want to go through the ____________ of the data.
middle or majority
Determine the association in the scatter plot below.
No Association
Make a prediction for the test score of a student who studies 2.5 hours.
78
Accepted: 76-80
Write the equation for the trend line shown in the scatter plot below, using the two points (0,453) and (10,359).
y=-9.4x+453
What is the percentage of students wearing contact are in middle school?
6/26 = 0.30 = 30%
What is the term for a line on a scatter plot, drawn near the points that approximates the association between the data sets?
line of best fit
Determine the association of the scatter plot below.
Nonlinear association
Make a prediction for the volume of the tank at 12 minutes.
230 gal
Accepted 210-250
What would be the starting and ending points of the trend line for the following scatter plot.
(8,0) to start and (95,900) to end
Accepted: Start x-value 5-10
End x-value 90-100
Determine the total number of 3-point shots made by all students (upperclassman and underclassman)
29
The term cluster means what?
a group of points that lie close together
Determine the associations of the scatter plot.
Negative/Linear Association
Make a prediction for the amount of time passed, when the freezer temperature is 25°
2.5 minutes/ 2 minutes 30 seconds
Accepted: 2 minutes- 3 minutes
How many total people were surveyed?
60
What is the percentage of students in the 8th grade that use 3-4 hours of homework?
65/200 = 0.325 = 33% (32.5% is also accepted)
What are the five types of association?
positive, negative linear, nonlinear and no association.
Determine the full association for the scatter plot below.
Nonlinear association
Given points on the graph, (0,453) and (10, 359), and trend line equation y=-9.4x+453 make a prediction for how long (in minutes) it will take for the balloon to reach the ground.
48.2 minutes
Accepted 47-49 minutes
How many women like chemistry?
6
Determine the percentage of total students surveyed that are in 6th grade.
142/492 = 0.28.86 = 28.86%
Accepted: 29%, 28.9%