6.1 Graphs of Normal Probability Distributions
Chapter 6 Notes.notebook
March 05, 2018
6.1 Graphs of Normal Probability Distributions:
Normal Distribution ? one of the most important examples of a continuous probability distribution, studied by Abraham de Moivre (1667 ? 1754) and Carl Friedrich Gauss (1777 ? 1855). (Sometimes called the Gaussian distribution.)
We could look at a very complicated formula which speaks of the normal distribution, however, we will just look at the graph of a normal distribution to get a better idea of what we are discussing.
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Chapter 6 Notes.notebook
March 05, 2018
Graph of a Normal Distribution
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Chapter 6 Notes.notebook
Examples
March 05, 2018
Some Facts to Realize About Normal Curves: 1) The mean and standard deviation have no influence on each other. So, a curve with a large mean need not have a large standard deviation. 2) If a curve is very spread out, it then has a large standard deviation, and vice versa.
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Chapter 6 Notes.notebook
March 05, 2018
Examples: Sketch the following curves given the information below. Label everything, including transition points.: a) Mean of 24 and Standard Deviation of 11.
b) Mean of 19 and Standard Deviation of 6.
c) Mean of 111 and Standard Deviation of 10.
d) Mean of 107.5 and Standard Deviation of 9.
e) Mean of 20 and Standard Deviation of 6.2.
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Chapter 6 Notes.notebook
March 05, 2018
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