# Question

According to a survey, 30% of adults are against using animals for research. Assume that this result holds true for the current population of all adults. Let x be the number of adults who are against using animals for research in a random sample of two adults. Obtain the probability distribution of x. Draw a tree diagram for this problem.

## Answer to relevant Questions

According to the Alzheimer’s Association (www.alz.org/documents_custom/2011_Facts_Figures_ Fact_Sheet.pdf), 3.7% of Americans with Alzheimer’s disease were younger than the age of 65 years in 2011 (which means that they ...Find the mean and standard deviation for each of the following probability distributions. a. x P(x) 0.... .16 1.... .27 2.... .39 3.... .18 b. x P(x) 6.... .40 7.... .26 8.... .21 9.... .13 Indicate which of the following random variables are discrete and which are continuous. a. The amount of rainfall in a city during a specific month b. The number of students on a waitlist to register for a class c. The price ...Refer to the probability distribution you developed in Exercise 5.20 for the number of lefthanded persons in a sample of two persons. Calculate the mean and standard deviation of x for that distribution. Let x be a discrete random variable that possesses a binomial distribution. a. Using Table I of Appendix C, write the probability distribution of x for n = 5 and p = .80 and graph it. b. What are the mean and standard ...Post your question

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