Probability calculator for random variable

    • [DOC File]Section 1

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      Given the probability of success, p, calculate the probability of getting the first success on the nth trial. Calculate the mean (expected value) and the variance of a geometric random variable. Calculate the probability that it takes more than n trials to see the first success for a geometric random variable.

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    • [DOC File]Chapter Five

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      The probability distribution of a discrete random variable lists all the possible values that the random variable can assume and their corresponding probabilities. As an example, the following table lists the probability distribution of x where x is the number of cars owned by a family living in a city.

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    • [DOCX File]STANDARD

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      PS.19The student will identify the meaning of sampling distribution with reference to random variable, sampling statistic, and parameter and explain the Central Limit Theorem. This will include sampling distribution of a sample proportion, a sample mean, a difference between two sample proportions, and a difference between two sample means.

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    • [DOCX File]Portland State University

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      Problems 10 – 11: The random variable X is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. It is known that the mean number of occurrences in ten minutes is 5.3.

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    • [DOC File]Calculating Probability

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      Random Variable (§5.4) 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. ...

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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]Math 227 Statistics

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      Find the probability that in a random sample of 13 Americans, the number who will say they have gained “a lot” of weights in the past five year is at most 2. (8 points) Two fair dice are rolled. Find the probability that the sum is 8 or 11. Find the probability that the sum is 6, given that one of the dice shows an odd number. (12 pts: 4 ea.)

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