A company is in the business of finding addresses of long-lost friends. The company claims to have a 70% success rate. Suppose that you have the names of eight friends for whom you have no addresses and decide to use the company to track them. (b) Find the mean and standard deviation of this probability distribution. What is the expected number of friends for whom addresses will be found? (Round your answers to two decimal places.) μ = friends σ = friends (c) How many names would you have to submit to be 96% sure that at least two addresses will be found? (Enter your answer as a whole number.)names

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Q: x P(x) 0 0.05 1 0.05 2 0.15 3 0.75 Find the mean of this probability distribution.

A: 0 0.05 0 1 0.05 0.05 2 0.15 0.30 3 0.75 2.25

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A: The probability distribution is given.

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A:

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A: X0123P(X)0.050.050.050.85

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A:

Q: x P(x) 0 0.15 1 0.25 2 0.05 3 0.55 Find the mean of this probability distribution. Round your…

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A:

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A: According to the given information, we have The probability distribution table is given.

Q: Five males with an X-linked genetic disorder have one child each. The random variable x is the…

A: Mean(μ)=E(X)=∑X.P(X)E(X2)=∑X2.P(X)Variance(σ2)=E(X2)-(E(X))2Standard deviation(σ)=E(X2)-(E(X))2

Q: X 0 1 2 3 P(x) 0.15 0.25 0.15 0.45 Find the mean of this probability distribution. Round your answer…

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A: The given data is,00.02810.15620.31630.31640.15650.028

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A: Addition rule will applied here

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A:

Q: P(x) 0.2 1 0.3 2 0.05 3 0.45 Find the mean of this probability distribution. Round your answer to…

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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.