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Chapter 6 : Probability - Coggle Diagram
Chapter 6 : Probability
Probaility measures how likwly san event is to occur
proability values always range from 0 to 1
A probaility of 0 means an event cannot take place
A probability of 1 means an event will happen
The closer probability is to 1 the more likely it is to occur
The closer the probability is to 0, the less likely the event
experemntal probability is based on observed data
Simple event have one outcome
A sample space is the set of all possible outcomes
Probability is used to model uncertatainty in data
probaility can be expressed as a fraction
dependent eventd are affected by previous outcomes
the sum of probabilites of all outcomes in a sample space equals 1
random variables assign numerical values to outcomes
Continuous variability is about outcomes like time or height
percentiles and ranks measure the relative standing of a score within a distribution
for normal distributions probability can be found in the unit normal table
All the possible probability values are contained in a limited range
the z zcore formula allows you to tranform x to z or change z back to x
a population is normally distributed with u=60 and O=5
A biased object does not have equal probabilities for all outcomes
probability forms a direct link between samples and the population from which they come
Probability can help estimate risk
Every in the populaiton has an equal chance of being selected