Normal distribution
Continuous random variable
Graph: Percent Histogram
Histogram (Area of rectangle = probability)
Decrease interval size...
Decrease interval size more….
Continuous probability density functions
Special kind of continuous p.d.f
Characteristics of normal distribution
Examples of normal random variables
What is probability a student gets a grade below 65?
Probability = Area under curve
Standardizing
Probability given in Standard Normal Z Table
How to Read a Standard Normal Z Table
What is probability student gets grade above 75?
What is probability student gets grade between 65 and 70?
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