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[DOC File]Mean & Standard Deviation of a Discrete Probability ...
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shown to illustrate that any normal distribution is determined by 2 parameters: the mean and the standard deviation & once values are selected, we can graph it relating x and y . it won’t really be necessary for us to use the formula in this class. the result is a continuous probability distribution with the a symmetric bell shape
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Standard deviation - Wikipedia
The mean and standard deviation of a discrete population probability distribution are found by using these formulas: Mean μ = ΣxP(x) Standard Deviation σ = √Σ(x – μ)2P(x) To calculate these figures, we should construct a table which looks like the following: x P(x) xP(x) x - μ (x – μ)2 (x – μ)2 P(x) Σ = Σ =
standard deviation of probability

[DOC File]Probability Distributions
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g) What is the standard deviation of the probability distribution? Example 8: The AP Statistics exam includes 40 multiple choice questions, each with 5 answer choices. Suppose you believe you have forgotten everything and must guess (randomly choose one …
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[DOC File]AP Statistics Review – Probability
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TI-83/84 Discrete Probability Distributions. You can use the TI-83/84 calculator to graph a discrete probability distribution as well as find the mean (expected value) and standard deviation of a discrete random variable. Example: The manager of the Elmwood …
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[DOC File]Using The TI-83 to Construct a Discrete Probability ...
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The standard deviation of the distribution is between –1 and 1. The distribution may be displayed using a probability histogram. Part II – Free Response (Questions …
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Standard deviation from probability distribution