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A ball is drawn from a bowl containing 2 red, I blue, and 7 black balls: The ball is replaced, and a second ball is drawn, and so on until 3 balls have been drawn (sampling with replacement).
(a) Let X = the total number of red balls drawn. Tabulate its probability function. Find p and as. Graph. (b) Repeat (a), for Y = the total number of blue balls drawn.
Suppose 3 high school students are randomly selected from different schools. What is the probability that all graduate?
Does the use of cell phones lead to a higher incidence of brain cancer? People with brain cancer were matched with people who did not have brain cancer on age, gender, and living environment. Each participant in the study was asked to answer question..
a. What is a discrete random variable? b. Give an example of a discrete random variable that is continuous for practical purposes.
Screening for substance abuse among adolescents. Rojas, Sherrit, Harris, and Knight (2008) conducted a study using the Car, Relax, Alone, Forget, Friends.
Use the january 2003 price as the base period and 100 as the base value to develop a simple index. By what percent has the cost of chicken increased?
if we were randomly drawing a sample of one organizaiton from a population of 15 where five are high performers and
Utilizing the chart parameters developed above to define the control charts for future candy bar production, Compute the appropriate plotting points from the data.
Prepare a frequency distribution from data given below that describes how long it took a person to drive to work in work week.
A mean life of 1800 hours and a standard deviation of 200 hours. Assume the life of these light bulbs follows a normal distribution. Find the probability that a single light bulb will have a life greater than 2000 hours.
Raccoons are identified by gender and then weighed from three different neighborhoods. Using a 0.05 significance level what can you conclude from the following Two-Way ANOVA results?
Write a brief research report based on an analysis of the data file - describe the demographic characteristics of my sample and how the data were collected
a polling organization interviewed by phone 400 randomly selected fans about their opinion on random drug testing of
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