Exploring Data
This measure of center is most resistant to extreme outliers.
What is the median?
This type of study randomly assigns treatments to subjects.
What is an experiment?
This type of interval estimates an unknown population parameter.
What is a confidence interval?
This is when a trend appears in separate groups but reverses or disappears when the groups are combined.
What is Simpson’s paradox?
This is Mr. Rhee's favorite song from Freaky Friday.
What is Biology?
This graph is best for showing the distribution of one quantitative variable by grouping values into intervals.
What is a histogram?
This sampling method chooses every member of the population with the same chance of being selected.
What is a simple random sample?
This value is the probability of getting results as extreme as the observed result, assuming the null hypothesis is true.
What is the p-value?
This number describes what percent of the variation in y is explained by the linear relationship with x.
What is r^2, or the coefficient of determination?
This Appel player is the most famous cheater.
Who is Michael Chan?
This value tells us how many standard deviations a data point is from the mean.
What is a z-score?
This probability rule is used when two events cannot happen at the same time.
What is the addition rule for mutually exclusive events?
This is the probability of rejecting a true null hypothesis.
What is a Type I error?
This type of bias occurs when people chosen for a sample cannot be contacted or do not respond.
What is nonresponse bias?
This is also called "Five-in-a-Row".
What is Gomoku?
This number describes the strength and direction of a linear relationship between two quantitative variables.
What is the correlation coefficient, or rrr?
This is the expected long-run average value of a random variable.
What is the expected value?
This value is compared to the p-value to decide whether to reject the null hypothesis.
What is the significance level, or alpha?
This describes two events where knowing one event happened does not change the probability of the other.
What is independent?
This is the year Mr. Rhee joined Mirman.
When is 2023?
This plot shows the difference between observed yyy-values and predicted yyy-values from a regression model.
What is a residual plot?
This distribution describes the behavior of a sample statistic over many repeated samples.
What is a sampling distribution?
This conclusion is made when the p-value is less than the significance level.
What is reject the null hypothesis?
This word describes a statistic that consistently overestimates or underestimates a parameter.
What is biased?
This is the first word Oliver spelled correctly this year's national spelling bee.
What is astilbe?