Discrete random variables calculator

    • [DOC File]Section 1

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      Means and Variances of Random Variables. Calculate the mean and variance of a discrete random variable. Find the expected payout in a raffle or similar game of chance. Use simulation methods and the law of large numbers to approximate the mean of a distribution. Use rules for means and rules for variances to solve problems involving sums ...

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    • [DOC File]MAT 211 - Final

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      Random variables of the discrete type. In . probability theory, a . probability distribution. is called . discrete. if it is characterized by a . probability mass function. Thus, the distribution of a . random variable. X is discrete, and X is then called a . discrete random variable, if . If a random variable is discrete, then the . set

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

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      Use your calculator to calculate and interpret the standard deviation of X in the languages example. = 0.450. The standard deviation of X is . Are there any dangers to be aware of when using the calculator to find the mean and standard deviation of a discrete random variable? Must show some work to get credit. First couple of terms is fine.

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    • [DOC File]Using The TI-83 to Construct a Discrete 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 Café has a staff of six wait-persons on weekend evening shifts.

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    • [DOC File]Random Variable - Central Bucks School District

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      Transforming Random Variables. We may want to alter a random variable (add, subtract, multiply, divide the variable) We may want to combine it with another random variable. Let X and Y be independent random variables Let “a” and “b” be fixed numbers. RULES. Multiplication and addition of a variable: MEAN: VARIANCE:

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    • [DOC File]The Practice of Statistics - AP STATISTICS - AP Statistics

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      6.1 Discrete and Continuous Random Variables (pp.341-352) 1. What is a random variable? Define probability distribution. What is a discrete random variable? What are the two requirements for the probability distributions of discrete random variables? If X is a discrete random variable, what information does the probability distribution of X give?

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    • [DOC File]AP Statistics

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      Aug 27, 2013 · Do #19 page 355 (using calculator) Discrete random variables commonly arise from situations that involve counting something. Situations that involve measuring something often result in a continuous random variable. Definition: A continuous random variable X takes on all values in an interval of numbers. The probability distribution of X is ...

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    • [DOC File]Section 1

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      Discrete random variables and their probability distributions, including binomial and geometric. What you will learn: ... 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).

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    • [DOC File]AP Statistics Chapter 1 - Exploring Data

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      7.1: Discrete Random Variables . Random Variable A random variable is a variable whose value is a numerical outcome of a random phenomenon. Discrete Random Variable A. discrete random variable X has a countable number of possible values. Generally, these …

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    • [DOC File]The Practice of Statistics

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      uniform distribution Discrete and Continuous Random Variables . 1. What is a random variable? Define probability distribution. What is a discrete random variable? What are the two requirements for the probability distributions of discrete random variables? If X is a discrete random variable, what information does the probability distribution of ...

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