Consider the probability distribution of a random variable x. Is the expected value of the distribution necessarily one of the possible values of x?

Q: The binomial probability distribution requires that there be only two possible outcomes 'success'…

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Q: Given the following probability distribution:      X      P(X)      10    0.1      20    0.4      30…

A: Given data and calculation for the expected value is shown

Q: The joint probability distribution of variables X and Y is shown in the table below, where X is the…

A: The given information is: PXY0,0=0.13 , PXY0,1=0.16 , PXY0,2=0.07PXY1,0=0.08 , PXY1,1=0.14 ,…

Q: 2. Let X be a random variable with the following probability distribution: -4 1 P(X)| 0.2 0.3 0.4…

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Q: Use the probability distribution for the random variable x to answer the question. 2 3 4 p(x) 0.12…

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Q: A random variable X could have an expected value of -1. 1) True 2) False

A: Given data A random variable X could have an expected value of -1

Q: An air traveler from Istanbul to Ankara have two options on Turkish Airlines: a 190 TL fare with a…

A: Given that

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

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Q: The probability distribution of a random variable X is given in the table below. 2 5 P (X = x) 0.1…

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Q: Consider the following probability distribution: P(X) 1 0.1

A: Condition for valid distribution is  ∑PX=1

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: if the probability distribution for the random variable X is given in the table, What is the…

A: Given that: Xi -2 -1 0 1 2 Pi .1 .2 .4 .2 .1   We will use the formula of expectation:

Q: Let X be a discrete random variable with the following probability distribution -3 6 P(X=x) Find…

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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: If the probability distribution for the random variable X is given in the table, what is the…

A: According to the given information, we have The probability distribution table is given by, xi -5…

Q: Suppose that a die is weighted so that the outcomes produce the following probability distribution:…

A: Solution : Expected  value = 1×0.4+2×0.3+3×0.1+4×0.1+5×0.05+6×0.05 Expected  value =…

Q: the probability distribution of the number  of motorcycles owned by a family(x) is as follows x 0 1…

A: It is given that the probability distribution of the number of motorcycles owned by a family.

Q: Illustrate a probability distribution of a random variable X showing the number of face mask sold…

A: Total masks sold = 25 + 20 + 15 + 14 +15 = 89

Q: If the probability distribution for the random variable X is given in the table, what is the…

A: The expected value of X is calculate as E(X) = ∑x.p(x)

Q: Illustrate a probability distribution of a random variable X showing the number of face mask sold…

A: Given, Day   Number of Face Mask 1 25 2 20 3 15 4 14 5 15 6 10 7 12 8 10 9 15…

Q: Consider a random variable with the following probability distribution:  X          P(X) 0…

A: The table shows the probability distribution of X.

Q: b) Create a probability distribution for the random variable C

A: From the give information, Consider, probability distribution table: C=c P (C=c) 2…

Q: There is currently a global pandemic and many researchers and scientists are working assiduously to…

A: Given:- advanced researcher , a company that is currently testing a few vaccines confirms an 80%…

Q: A random variable X has the probability distribution given in the following table: 2 3 4 5 6 P(X =…

A: When random variable X has the probability distribution then sum of the probabilities must be equal…

Q: Consider the following probability distribution: P(X) 1 0.1 3 0.2 0.3 What is the mean of the…

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Q: 1 3 4 P(x) 0.02 0.07 0.22 0.27 0.42

A: In these questions, we have given that the  a random variable X and corresponding probability of X…

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

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Q: Two teams participated in 4 football game in 2008. The probability distribution for the data…

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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: Calculate the expected value of X for the given probability distribution. 2 4 PIX-) 01 0.6 0.2 0.1

A: Expected value of x is given by,                                        E(x) = ∑ X P(X)

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: In a certain town, 20% of adults have a college degree. The accompanying table describes the…

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Q: Consider the following probability distribution: 0. 1 4 p(x) 1/3 /3 1 /3

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Q: Which of the following assumptions concerning the probability distribution of the random error term…

A: The difference between observed value and estimated value is known as random error.

Q: An air traveler from Istanbul to Ankara have two options on Turkish Airlines: a 190 TL fare with a…

A: given that

Q: Calculate the expected value of X, E (X) =?, By finding the value a in the table so that the random…

A: Given ,   Expected value E(x)=?

Q: In which probability distribution would a random variable XX have E(X)=λE(X)=λ?

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Q: If the probability distribution for the random variable X is given in the table, what is the…

A: Given PMF of X. Now will using this pmf to find required information

Q: Complete the values of P (X = x) to give a legitimate probability distribution for the discrete…

A: The theory of probability has its origin in the seventeenth century.The king of France who…

Q: What is the expected value of the probability distribution of the discrete random variable X? x P(X…

A: Given:  A probability distribution of discrete random variable X. x 1 3 5 7 9 11 13 P(X=x) 0.23…

Q: Find the mean of the random variable X with the given probability distribution. * 1 2 P(x) 0.34 0.25…

A: Given that  Probability mass  function of X  x 0 1 2 3 P(x) 0.34 0.25 a 0.20

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

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Q: If the probability distribution for the random variable X is given in the​ table, what is the…

A: Given the probability distribution for the random variable X is: xi −1 2 4 pi…

Q: Calculate the expected value of X, E(X), for the given probability distribution. 1 P(X = x) 0.1 0.2…

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Q: Compute the mean and standard deviation of the random variable with the given discrete probability…

A: Ans - Given table     x P(x) x*P(x) x2P(x) -6 0.25 -1.5 9.0 -5 0.11 -0.55 2.75 6 0.23 1.38…

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: The payoff (X) for a lottery game has the following probability distribution: $0 $5 p(x) 0.80 0.2…

A: The expected value can be calculated as: The given values are depicted as follows: Substitute the…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.