1 & 2. Displaying Data
3. 2-Variable Data
4. Experiments
5. Probability
100
What do we call variables that are represented by words?
Categorical
100
This statistic measures the direction and strength of the association. It ranges from -1 to 1.
Correlation Coefficient "r"
100
What do we call the "fake" pill?
Placebo
100
What is the probablity of Ac if P(A) = 0.6
0.4
200
This exists between two variables if knowing the value of one variable helps us predict the value of the other.
Association
200
Our acronym to describe the relationship between two quantitative variables.
SFD, what? That is, Strength, Form, Direction and Other Features
200
What is the type of experimental strategy when subjects are initially split into separate groups on a characteristic that might impact the outcome of the experiment?
Blocking
200
The value of P(A and B) if A and B are mutually exclusive
0
300
This statistic measures the range of the middle 50% of a boxplot.
The interquartile range (IQR)
300
The term for the difference between an actual y-value and a predicted y-value.
A residual
300
In this type of experimental design, the experimental units are assigned to the treatments completely at random. This is regarded as the simplest type of experiment.
Completely Randomized Design
300
A list of possible outcomes
Sample space
400
In period 1 the class average was 80 with a standard deviation of 10. In period 2, the class average was a 75 with a standard deviation of 8. Carla scored an 82 in period 1 and David scored a 77 in period 2. Who did better in comparsion to their class?
David (z= 0.25). Carla's z-score was less (z=0.2).
400
A residual has this sign if the actual y-value underestimates the predicted y-value by the LSRL.
Negative
400
A surveyor splits the DeSales student population by class before asking a questionnaire about school spirit. He then takes a SRS from each class. This is an example of this type of sampling method.
Stratified Random Sampling
400
Shaquille O'Neal's free throw percentage was 53%. One night, he scored 8 of 10 FTs. Was this rare? With random digits, if 00-52 is a make and 53-99 is a miss...how many FTs did he make in the first trial below?
14 62 57 52 17 85 27 85 25 25
6 free throws
500
Rank the following distributions from lowest to highest standard deviation without a calculator.
A. 1, 2, 3, 4, 5, 6, 7, 8
B. 100, 100, 100, 100, 100, 100
C. -10, -10, -10, 0, 0, 0, 10, 10, 10
D. -10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10
B, A, D, C
500
The statistic with the following interpretation "__% of the variation in y can be explained by the linear regression with x."
r2
500
What is the term used to explain other explaination for the results from an experiements that was not tested for?
Confounding/Confouding Variable (Lurking Variable)
500
Mr. Baird is getting a puppy. Of his litter of 10, 8 like toys, 7 play nice, and 6 do both. What is the probability a randomly selected puppy from the litter likes toys or plays nice?
9/10