1 var Data Displays
These are the measures of center
What are mean and median?
DUFS
What is Direction, unusual, form, strength?
This type of bias occurs when people chosen for a survey don’t respond.
What is nonresponse bias?
BINS
What is Binary, Independent, Number of trials fixed, and Same probability of success for a binomial trial?
These events cannot happen at the same time.
What are mutually exclusive events?
What are range, standard deviation, variance, and IQR?
This is the interpretation of slope.
What is "for every 1 increase in the x-value, the predicted increase/decrease in y is ________"
A sampling method where the population is split into homogeneous groups, and an SRS is taken within each group.
What is stratified sampling?
A probability involving one event given that another event has already occurred is called this.
What is conditional probability?
The percentages associated with the Empirical Rule.
What are 68-95-99.7?
What is Q1−1.5×IQR and Q3+1.5×IQR?
Calculate a residual
What is Actuals – Predicted?
The type of sampling where the population is split into heterogeneous groups, and entire groups are selected.
What is cluster sampling?
If knowing one event occurs does not change the probability of another event, the two events are this.
What are independent events?
To be a valid probability distribution, these two things must be true.
What is each probability must be between 0 and 1, the sum of the probabilities must be 1.
5-number summary
What are min, Q1, median, Q3, and max?
The percentage of variation in y explained by the regression line is given by this value.
What is r² (the coefficient of determination)?
The main difference between an observational study and an experiment.
What is a treatment randomly assigned?
The probability that an event does not occur is given by this rule
What is the complement rule?
This descriptive measure for a scatterplot does not have any units.
What is correlation?
A standardized value that measures how many standard deviations a data point is from the mean.
What is a z-score?
Using a residual plot, this indicates a linear model is a good fit.
What is a residual plot with no pattern?
A variable that affects both the explanatory and response variables, creating a false association.
What is a confounding variable?
The shape of a geometric distribution
What is right-skewed?
What is "the people were selected randomly to participate"?