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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]AP Statistics - anderson.k12.ky.us
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WEEK 2— Chapter 7 “Random Variables” Discrete and continuous random variables. Probability histograms. Normal probability distributions. WEEK 3— Continue with Chapter 7. Means and variance of random variables. Law of large numbers. Rules for means and variances. Chapter 7 TEST. WEEK 4— Chapter 8 “Binomial and Geometric Distributions”
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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 …
discrete random variable variance formula

[DOC File]The Practice of 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]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]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]The Practice of Statistics
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What types of variables does it apply to? When can you add the variances of two random variables? State the equation for the mean of the difference of random variables? State the formula for the variance of the difference of random variables. What happens if two independent Normal random variables are combined? Suppose = 5 and = 10.
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[DOC File]Random Variable
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DISCRETE Random Variables CONTINUOUS Random Variables What is it? Can list all the outcomes Outcomes are in an interval, cannot all be listed ... CALCULATOR: L1 = values of variable (top row of table) ... VARIANCE: Combining 2 or more variables together: MEAN: VARIANCE: EXAMPLES: Random variable X has a mean of 6.2 and a standard deviation of 3.1.
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[DOC File]TEST
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MSA analysis for discrete or attribute data. ... and typically denoted by r) is a measure of the correlation (linear dependence) between two variables X and Y, giving a value between +1 and −1 inclusive. It is widely used in the sciences as a measure of the strength of linear dependence between two variables. ... (CLT) states conditions under ...
discrete random variable variance

[DOC File]Section 1
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Given a Normal random variable, use the standard Normal table or a graphing calculator to find probabilities of events as areas under the standard Normal distribution curve. 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.
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Variance calculator of discrete variables