Persons entering a blood bank are such that 1 in 9 have type O+ blood and 1 in 30 have type O- blood. Consider six randomly selected donors for the blood bank. Let X denote the number of donors with type O+ blood and Y denote the number with type O- blood. Find the probability distributions for X and Y. Also find the probability distribution for X+Y, the number of donors who have type O blood.

Q: The average waiting time for a calling customer by the call center of a bank's telephone banking is…

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A: Given : λ = 1.22

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A: Binomial Distribution :  The binomial probability is a type of discrete probability distribution…

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Q: Assume that when adults with smartphones are randomly​ selected, 47​% use them in meetings or…

A:

Q: Assume that when adults with smartphones are randomly​ selected, 42​% use them in meetings or…

A:

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A: Given: x=13n=5005

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A:

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A:

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A:

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A:

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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.