Exploring Data
Relationships between variables
Gathering Data
Randomness and probability
Inference
100
This measure of center is more resistant to outliers than the mean.
What is median?
100
A measure of percent of variation in y that can be explained by variation in x.
What is the coefficient of determination (r2)?
100
A method of sampling where people get to chose whether or not to participate.
What is a voluntary response sample?
100
If 14% of 235 people like oranges then this many people like oranges
What is 33 people?
100
Situations when inference procedures are appropriate.
When we are using a representative sample to try to learn more about a population.
200
The name for the average distance from the mean in a data set.
What is a standard deviation?
200
The constant that sets an initial value for the response variable when the explanatory variable is zero.
What is a y-intercept?
200
An example of a lurking variable.
Why do shark attacks and ice cream sales both increase at the same time (summer)?
200
The best way to solve problems involving the word "or" when combining to random events.
What is P(A) + P(B) - P(A and B)?
(or a venn diagram!)
200
The type of significance test used for the mean of a single population when the standard deviation of the population is unknown.
What is a T test (or T procedure)?
300
A measure of spread that finds the middle 50% of the data.
What is IQR (Q3-Q1)?
300
The four things you must describe on a graph of bivariate data
What are direction form scatter and unusual features?
300
The confounding variable if a new drug is tested by giving a placebo to a man and the drug to a woman.
What is gender?
300
The mean and standard deviation of possible means from 25 person samples if the mean of the population is 10 and the standard deviation is 5.
What is muxbar = 10 and sigmaxbar = 1
300
The z* for a 90% confidence interval for proportions.
What is 1.64 (or invnorm(.95, 0,1))
400
The way to find out whether a data point is an outlier or not?
Build your fences (Q1-1.5IQR and Q3+1.5IQR)!
400
An example of a situation with response bias.
What is a poorly written question, questioner who will affect responses, or limited response options?
400
The standard deviation of three games of chance if one game has a standard deviation of 2.
What is sqrt(3*22)?
400
Two of the conditions to be verified specifically for inference about a proportion.
What are the population size be greater than or equal to 10n and n times p hat & n times (1 - p hat) be greater than or equal to 10? (SRS could also be one of the two)
500
A method of determining whether gender and dog preference are related to each other in this sample. 
What is comparing a marginal and conditional distribution?
500
The purpose of blocking in an experimental design.
To remove variation from a confounding variable.
500
The chances of getting more than 7 heads out of 10 flips.
What is 1-binomcdf(10,.5,6)?
500
The p-value using this representative sample of data to tell whether gender and dog preference are related in the population
What is a chi2 test of independence?