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1. The values of x in a discrete probability distribution must be both exhaustive and mutually exclusive. What is meant by these two terms?
2. A discrete random variable can have the values x = 3, x = 8, or x = 10, and the respective probabilities are 0.2, 0.7, and 0.1. Determine the mean, variance, and standard deviation of x.
A political telephone survey of 260 people asked whether they were in favor or not in favor of a proposed law. Each person was identified as Republican or Democrat. The following contingency table shows the results.
a group of 49 randomly selected students has a mean age of 22.4 years with a standard deviation of 3.8. construct a 98
in order to be accepted into a jb university applicants must score within the top 5 on the sat exam. given that the
10 cobalts are ramdomly selected and the miles per gallon for each car are recorded. What is the probability that the mean miles per gallon exceeds 34 miles per gallon?
A) If Y is normal with μ = 200 and σ = 12, what is the probability that Y will be between 186 and 210? B) If X is normal with μ = 8.48 and σ = 1.60, what is the difference between the two values of X which include the central 70% of the probability..
You have been called upon to assess whether a NICU nutrition protocol is working to promote growth in underweight babies. You have weight measurements at three time points: birth, 28 days and discharge from the hospital. You also have a variable i..
bob a manufacturing plant manager is inspecting the diameters of ball bearings produced by a suspected malfunctioning
The campaign staff legislator wants to determine whether the legislators performance rating (0-100) has increased from last year to this year. the legislature performance ratings from the same 16 randomly selected voters are recorded for last year..
for a poll 43 of 21944 people polled answered yes to the given question. given that 43 is the best estimate of the
What are the strengths and weaknesses of nonparametric tests? Can the outcomes of the nonparametric tests be generalized to populations?
What are the respective sample means on "feelsafe" (Importance of Safety) for males and females from the SPSS Tables Set-1, when visiting a sports bar?
What is the problem of interest? Enough background information should be provided such that someone unfamiliar with the problem could understand it. Motivate why the problem is an important problem to solve. Conduct a cursory literature review of ..
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