Let W be a random variable giving the number of heads minus the number of tails in three tosses of a coin Assuming that a head is six times as kely to ocur fnd the probability distribution of the random variable w Complete the following probability distribution of W. 3. f(w) (Type integers or simplified tractions)

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A: The mean can be calculated as: mean = ∑i=0nxp(x)

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A: GivenMean(μ)=269standard deviation(σ)=14.7

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A:

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A:

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A:

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A:

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A: Solution: From the given information, the probability mass function of X is

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A:

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A:

Q: D1

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Q: Plzzz explain all question

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A: X 0 1 2 P(X) 2 a a 3 a

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Q: For the discrete probability distribution. 1 3 4 5 7 f k 2k 2k 3k k² 2k² 7k² + k Find the variance.

A:

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A: Note : Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the…

Q: a random variable has probability distribution: x= 0,1,2,3,4,5,6,7 and P(x) =0,k,2k,2k,3k,k*k, 2k*k,…

A: Solution-: We have given following table: x 0 1 2 3 4 5 6 7 P(x) 0 k 2k 2k 3k k2 2k2 7k(k+1)…

Q: On a popular app, users rate hair salons as 1, 2, 3, 4, or 5 stars. Suppose a rating is randomly…

A: given data, p(X=1)=0.25p(X=2)=0.19p(X=3)=0.09p(X=4)=0.21p(X=5)=0.26we have to find out the given…

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A: The given probability distribution is:

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A: X follows the binomial distribution with the parameters as n = 5 , p = 0.5 , q = 1-0.5 = 0.5    p(x)…

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A: Given data Two balls are randomly selected from an urn that contains four white balls and seven red…

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A: We have to find given probability.

Q: Let wages denote a person's hourly wages and edu denote their years of education. Suppos wages = B1…

A: The regression equation is given as  wages =β1+β2edu+β3edu2+e