Given the probability distribution table, what is the expected value and variance of the discrete random variable.

Q: What is the sum of the probabilities of all outcomes in a probability distribution

A: To determine, Sum of all probabilities of a probability distribution = ?

Q: The mean and standard deviation of a binomial probability distribution with n=25 and p = 0.20 are

A: p = 0.2 n = 25

Q: Find the expected value of the above random variable.

A: The probability distribution is, Probability Scores 0.35 1 0.1 4 0.15 6 0.15 7 0.20 13…

Q: Why can’t all the probabilities for a Poisson random variable be displayed in a probability…

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Q: what is the binominal probability distribution

A: Introduction to binomial distribution:Consider a random experiment involving n independent trials,…

Q: How do you graphically portray the probability distribution of a discrete random variable?

A: Probability Histogram: A probability histogram is the graph of a probability distribution that gives…

Q: Explain the probability distribution of Size n random distribution?

A: The probability distribution of size n for random variables describes how the probabilities are…

Q: According to a census, the number of household size in a certain city was represented by a random…

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Q: What is the correlation p between X and Y for the joint probability table?

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Q: Is the following a Probability Distribution?

A: Random variables are of two types, discrete and continuous. A discrete random variable can only take…

Q: explain the chebyshev's theorem and its relevance to probability distribution

A: #explain the chebyshev's theorem and its relevance to probability distribution??

Q: What requirements are necessary for a normal probability distribution to be a standard normal…

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Q: Determine whether the following statement is true or false, and explain why. The expected value of a…

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Q: 4. Compute the mean and the Standard deviation of the probability distribution table of : 2 Y 0.2…

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Q: What is the Advantage and Disadvantage of Using the Binomial Probability Distribution

A: A binomial probability distribution is used when the number of trials are few and the probability of…

Q: What is the expected value of the probability distribution of the discrete random variable X?

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Q: Find the standard deviation o of the random variable X given the probability distribution

A: Steps to find the standard deviation δ for given probability distribution - Step 1. Find x.P(x)Step…

Q: A statistic is a random variable that depends only on the observed sample. True False

A: We have  Statistic: The function of sample.  i.e a random variable which depends on the sample

Q: Give 1 real life situation where the concept of random variables is applicable and construct its…

A: A random variable is a variable whose values depend on outcomes of a random experiment. It is…

Q: A recent review of the students at the community college and the number of classes they take finds…

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Q: In what cases would you use the binomial distribution? Give two examples of what would be considered…

A: Given that We have to find the case when we use binomial distribution and it's example

Q: what is the difference between a Binomial probability distribution and the Poisson probability…

A: The binomial distribution is measure the number of certain random events within a certain frame is…

Q: What does the mean of a probability disturbution represent?

A: Any random variable can assume several values and there is a probability associated with each value.…

Q: What properties need to be satisfied in order for a table/function to be considered a valid…

A: Probability distribution arise when we need to quantify uncertainty associated with several events…

Q: What is the two-tailed probability value testing the null hypothesis that the population mean is 0?…

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Q: The combined probability distribution of two random variables is referred to as its marginal…

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Q: state the criteria for a binomial probability experiment

A: Solution-: State the criteria for a binomial probability experiment

Q: When two unbiased dice are thrown, find the expected value of the product of the numbers shown on…

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Q: Given the following probability distribution, what is the expected value? Outcome P(Outcome) 4 0.13…

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Q: What does the probability distribution of a discrete random variable tell you?

A: The discrete random variable is obtained by counting values for which there are no in-between…

Q: What are the two requirements for a discrete probability​ distribution?

A: Discrete random variable: A random variable which takes countable finite values.Discrete probability…

Q: . What is the expected value and what does it measure? How is it computed for a discrete probability…

A: In the theory of probability, the expected value of a random variable X denoted EX is a…

Q: Complete the table that shows the probability and cumulative distribution function of random…

A: here use cumulative probability law that is in given scenario F(3) = f(1) +f(2)+f(3)

Q: According to Chebychev's theorem, the probability that the random variable Y differ from the mean u…

A: The provided information is:

Q: What would be the expected value, variance and standard deviation of an event that always took the…

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Q: do we compute the mean or expected value, standard deviation, and variance given a discrete…

A: Let the discrete probability function be as follows x P (X) 1 0.2 2 0.4 3 0.1 4 0.3

Q: Is the following a valid probability distribution?"

A: The conditions of the probability distribution are: The sum of probability distribution should be…

Q: The number of homes sold by a realtor during a month has the following probability distribution:…

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Q: What is the relationship between the joint probability and marginal probabilities of two independent…

A: The relationship between the joint probability and marginal probabilities of two independent events…

Q: which of the following probability distributions is a random variable?

A: Given that  Some probability distributions for a random variable   We know that  ∑P(X) =1 We check…

Q: 3. Construct a probability distribution for the data and draw a histogram for the following:

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Q: Illustrate the probability distribution if X is the random variable that represents the number of…

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Q: What could be the possible values of the random variable below? Number of blood donors in a donation…

A: HEre use random variable definition random variable is variable that contains the value(numeric…

Q: A description of the distribution of the values of a random variable and their associated…

A: Given that, A description of the distribution of the values of a random variable and their…

Q: How is the probability distribution of a variable defined?

A: Probability distribution of a variable

Q: A random sample statistic will have a probability distribution that is its sampling distribution…

A: A sample statistic is a measure that describes the sample.

Q: ) What is the probability of rejecting the lot? b) What is the probability of not finding defective…

A: here given , A microchip manufacturer controls the quality of its products by inspecting a batch of…

Q: What is the probability distribution of the following data? Mean = 25.28571

A: It is given that: From the graph,  Player name Rankings (Wins) (f) Khabib Nurmag 29…

Q: Still in the same context, aproximate the probability of having at most 26 jurors using the normal…

A: Here, n = 40 and p = 0.80.