Definitions
A way of reasoning that requires the collection, analysis, interpretation, and presentation of large amount of data for the purpose of understanding and decision-making
What is statistics?
A numeric measure of the likelihood an event will happen
What is probability?
Formula for mean
(Sum of x)/number of entries
What Relative frequency should always total.
What is 1?
Data points that seem to be anomalies.
What is an outlier?
a collection of numbers, words, images, or other items that provide information.
What is data?
The set of all possible outcomes.
What is sample space?
Formula for Standard deviation
What is Square root of variance
How data is spread over four intervals
What are quartiles?
What the total area under the curve equals
What is 1?
Variable where data is grouped according to some characteristic
What is Categorical Data?
The numbers a probability is between.
What are 0 and 1.
General Addition rule formula
What is P (A or B) = P(A) + P(B) – P(A and B)
The quartile the median is equal to.
What is Q2?
A test that measures the linear association between two variables
Measurable variable
What is a Quantitative variable
The probability of an event NOT occurring
What is 1 minus the probability that the event occurs ?
Formula for conditional probability
P(A|B) = P(A and B)/ P(B)
How to find Inter-quartile-range
What is Q3-Q1?
Sign when both x and y increase
What is positive correlation?
Where you graph your data and it is approximately symmetrical shaped and unimodal
What is Normal Model
Most questionable form of probability
What is Personal/Subjective
The General Multiplication rule formula
What is P(A and B) = P(B)*P(A|B)
A visual representation of the IQR
What is a Box-Plot?
The outcome of one event does not affect the outcome of another.