EDA MIDTERM Flashcards
Means possibility. A branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
Probability
4 Key Probability Terms
Experiment, Outcome, Sample Space, Event
2 types of Event
Simple Event and Compound Event
process where specific results are obtained
Experiment
single result of a probability experiment
Outcome
set of all possible outcomes for a probability experiment
Sample Space
set of outcomes of a probability experiment; a subset of the sample space
Event
Rolling a pair of dice has a sample space of 36 outcomes [(1,1), (1,2),
(1,3), (1,4) …etc. or just simply 6 x 6). TRUE OR FALSE?
TRUE
one outcome (rolling 4 in one die)
simple event
two or more outcomes (rolling an even number on a die then getting a head in a toin coss)
Compound Event
3 MainTypes of Probability
Classical, Empirical, Subjective
each outcome in a sample space is equally likely to occur
Classical Probability
each outcome in a sample space is NOT equally likely to occur
Empirical Probability
an e d u c a t e d guess or estimate
Subjective Probability
Key rules in Probability T or F:
The probability of a n event is always between 0 and 1. No negative probabilities or
greater than 1.
TRUE
Key rules in Probability T or F: The sum of all outcomes in a sample space is always equal to 1.
TRUE
Key rules in Probability T or F: It is impossible for an event to occur, the probability of that event is 0.
TRUE
Key rules in Probability T or F: If the event is certain to occur, the probability is 1.
TRUE
Types of Probability Distribution
Discrete Probability Distribution and Continuous Probability Distribution
Types of Discrete Probability Distribution
Binomial, Poisson,Hypergeometric
Types of Continuous Probability Distribution
Normal and Exponential
is the number of successes that result from a hypergeometric
experiment.
hypergeometric random variable
The probability distribution of a hypergeometric random variable is called
a
Hypergeometric Distribution
is a process that uses sample statistics to test a claim about the value of a population parameter
Hypothesis Test