Probability
What is the probability of getting heads on a fair coin flip?
What is 0.5?
This type of sampling gives every indiviual an equal chance to be selected.
What is a simple random sample?
This value measures the strength and direction of a linear relationship.
What is correlation?
This interval estimates a population parameter.
What is a confidence interval?
This test is used to determine whether there is an association between two categorical variables.
What is the Chi-Square Test of Independence?
If two events are independent, how do you find the probability both happen?
This bias occurs when people choose themselves to participate.
What is voluntary response bias?
A correlation close to -1 is what type of relationship?
A p-value measures the strength of evidence against what?
What is a null hypothesis?
This chi-square test checks whether sample data matches a claimed distribution.
What is the Chi-Square Goodness-of-Fit Test?
What is 2/6? or 1/3?
Surveying only morning students about school breakfast is what type of bias?
What is undercoverage bias?
In y=a+bx, this value represents slope. (Daily Double)
What is b?
Rejecting null hypothesis that is true is called this error.
What is a Type I error?
In a chi-square test, these are the counts predicted if the null hypothesis is true.
What are expected counts?
What is used to find P(A or B)?
What is the Addition Rule?
What sampling method is used to divide the population into groups, then randomly sample each group.
What is stratified random sampling?
What is the predicted value?
Failing to reject a false null hypothesis is called this error.
What is a Type II error?
This formula is used to calculate the chi-square test statistic.
These two values are used to describe a normal distribution.
What are the mean and standard distribtuion?
In an experimental design, subjects are assigned to treatments by chance.
What is random assignment?
Correlation does not imply this.
What is causation?
This theorem says sample means become apporimately normal as a sample size increases.
What is the Central Limit Theorem?
The degrees of freedom for a chi-square test of independence are found using this formula.
What is [(Row-1) x (Column-1)]?