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In a states pick 3 lottery game you pay 1.42 to select a sequence of three digits (from 0 to 9) such as 411. if you select the same sequence of three digits that are drawn you win and collect $439.15
a. How many different selections are possible
b. what is the probability of winning
c. if you win what is your net profit
d. find expected value
Why do you use the chi-square statistic? Explain. What type of data is used with chi square analysis? Explain. What are the hypotheses in a chi-square test for independence? Explain.
The significance level of a statistical test is equal to the probability that the null hypothesis is true.
What are examples of variables that follow a binomial probability distribution? What are examples of variables that follow a Poisson distribution? When might you use a geometric probability?
when ben looks at the keyboard he sees fingerprints on the following lettersa e f g l o r v yhow many different
A report states that 46% of home owners have a vegetable garden. How large a sampl.e is needed to estimate the true proportion of home owners who have vegetable gardens to within 4 percentage points with 95% confidence?
Construct the indicated confidence interval for the difference between the two population means. Assume that the two samples are independent and that they have been randomly selected.
A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40. Compute the probability the sample mean is
suppose a point xy is chosen at random from the disk x2 y2 lt 1. find a the marginal density of x and b the
A research study will measure the cost of the new method over a sample production period. Develop the null and alternative hypothesis most appropriate for this study.
on the day that this project was written aol conducted an internet poll and asked users to respond to this question
the makers of mini-oats cereal have an automated packaging machine that can be set at any targeted fill level between
Decileter and standard deviation of 41 mg/dl. in an srs of 100 men what is the probability that x bar takes a value between 185 and 191 mg/dl?
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