Variance discrete random variable calculator

    • [DOC File]Wednesday, August 11 (131 minutes)

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      Standard Deviation (and Variance) of a Discrete Random Variable. Suppose that X is a discrete random variable whose probability distribution is. Value: x1 x2 x3 … Probability: p1 p2 p3 … and that µX is the mean of X. The variance of X is. Remember, the standard deviation is the square root of the variance!

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    • [DOC File]Section 1

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      Use your calculator to help evaluate a binomial probability. If X is B(n, p), find µx and (x (that is, calculate the mean and variance of a binomial distribution). Use a Normal approximation for a binomial distribution to solve questions involving binomial probability. Vocabulary: Binomial Setting – random variable meets binomial conditions

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    • [DOC File]The Practice of Statistics

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      Chapter 16: Random Variables. Key Vocabulary: random variable . discrete random variable probability model. expected value standard deviation. continuous random variable Calculator Skills: 1-VarStats L1, L2 What is meant by a random variable? Explain the difference between a discrete random variable and a continuous random variable.

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    • [DOC File]The Practice of Statistics

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      mean of a random variable. variance of a random variable. probability density curve. continuous random variable. ... If X is a discrete random variable, what information does the probability distribution of X give? ... What commands on the calculator are used to calculate binomial probabilities? 8. Explain how to calculate the mean and standard ...

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    • [DOC File]AP Statistics

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      Aug 27, 2013 · discrete random variable. Do #5,7 page 353 . When analyzing discrete random variables, we’ll follow the same strategy we used with quantitative data – describe the shape, center, and spread, and identify any outliers. The mean of any discrete random variable is an average of the possible outcomes, with each outcome weighted by its probability.

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    • [DOC File]Calculating Probability

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      Probability Distribution of a discrete random variable (§5.4, §1.3) Mean and Variance of a discrete random variable (§5.4, §2.1, §2.2)-----Random Variable (r.v.) A . random variable . is a real-valued variable whose value depends on the outcome of an experiment. Ex ...

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    • ANTICIPATING PATTERNS

      of a discrete random variable X is a function matching all n possible outcomes of the random variable ... can be calculated with the graphing calculator as follows: b. inomcdf ... If a random variable X has variance of . σ x 2 and a random variable Y has variance σ y 2 , ...

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    • [DOC File]People worked with a company that cuts paper from large ...

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      Expected value for the discrete random variable, X: Weighted average of the possible values. Expected value of the random variable X, Variance for the discrete random variable, X: = Discrete probability distribution, p(x) is legitimate if . 0 ( p(x)=P(X=x) ( 1 for all x where X is a discrete random variable (r.v).

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    • [DOC File]A marketing manager at very big machines wants to ...

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      Discrete probability distribution, p(x) is legitimate if . 0 ( p(x)=P(X=x) ( 1 for all x where X is a discrete random variable (r.v). Cumulative Distribution Function, (CDF) for discrete X: where a and b are. The expected value of a discrete variable, X : The variance of a discrete variable, X: (2 = Var(X) = where

      variance calculator of discrete variables

    • [DOC File]The Practice of Statistics

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      random variable. discrete random variable. probability distribution. mean of a random variable. variance of a random variable. probability density curve. continuous random variable. standard deviation. ... What commands on the calculator are used to calculate binomial probabilities? 8. Explain how to calculate the mean and standard deviation of ...

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