Describing Relationships
In a scatterplot, what type of relationship is indicated by a downward sloping pattern
What is a negative correlation/relationship?
Describes the possible outcomes of a chance process and likelihood that those outcomes will occur
What is a probability model?
What is the name of the distribution of a statistic based on all samples from a population
What is sampling distribution?
The measure which indicates how far, on average, each data point is from the mean
What is standard deviation?
What is .5 or 50%
This measures an outcome of a study
What is a response variable?
The Large Counts Condition Formula
What is np ≥ 10 and n(1-p) ≥ 10
Describe what a parameter is
What is a number that describes some characteristic of the population
What symbol is commonly used to represent the population mean
What is "μ"
In a standard deck of cards, what is the probability of drawing an ace
What is 1/13 or 7.69%
The name of the line that best fits the data in a scatterplot
The four conditions for a Binomial Setting (cant just be the acronym)
What is Binary... Independent... Number... Same Probability... (B.I.N.S)
What condition must be met for the sampling distribution of the proportion to be approximately normal
what is np ≥ 10 and n(1-p) ≥ 10
What statistic provides an estimate of how different the sample mean is from the population mean
What is the standard error of the mean?
The probability that one event happens given that another event is known to have happened
What is conditional probability?
Describe the difference between correlation and causation
What is correlation indicates an association or relationship between two variables while causation indicates that one variable directly affects the other
The difference between discrete and continuous random variables
What is discrete variables have limited outcomes while continuous variables have an infinite number of outcomes?
Explain the relationship between the sample size and standard error
What is as the sample size increases, the standard error of the sample mean decreases
How does the choice of confidence level affect the confidence interval for the mean
What is a higher confidence level results in a wider interval while a lower confidence results in a narrower interval
What is the Chi- square test for independence?
Define "conditional expectation"
What is the expected value of a variable given the occurrence of another event
Describe how the distribution changes as the sample size increases
What is it approaches the normal distribution as it increases
What is systematic error refers to repeatable consistent errors caused by bias or other issues while random errors are unpredictable that occur by chance
The formula for the probability that at least one if the two mutually exclusive events occur
What is (P(A or B) = P(A) + P(B))?