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Chapter 20: Non-Normal Probability Distributions - Coggle Diagram
Chapter 20: Non-Normal Probability
Distributions
Reviewing Normal Probability Distributions
Discrete data is not continuous in nature. Discrete data is typically about categorical
occurrences.
The normal curve, when presented in graphical format or on a histogram, is typically symmetrical in
nature.
Non-Normal Continuous Distributions
The exponential distribution creates a histogram or trend line that is exponential in nature.
Lognormal Distribution
The lognormal distribution might appear to be an exponential distribution, but on a graphical
analysis, it is obviously constrained by zero.
Weibull Distribution
Non-Normal Discrete Distributions
A binomial distribution is used when you are dealing with discrete data and there are only two
outcomes for each trial or sample.
Applying Data to Real-World Situations
Many of the statistical analyses you will perform on data will be related to the normal curve.
When you can determine the probability for certain events or data points, you can make educated decisions about a process.
