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In a game of roulette, a steel ball rolled onto a wheel that contains 18 red, 18 black, and 2 green slots. A ball is rolled 25 times. Find the probability that the ball does not fall into any green slot?
only 3 reported that their health was excellent. Find the probability that when 13 adults are randomly selected, 3 or fewer are in excellent health.
Sketch a scatter plot that could represent data from each of following. Label the axes to indicate the independent and dependent variable.
There were 20 students in the class. Develop an ANOVA table for the regression analysis of hours studied as a predictor of the grade earned on the first statistics exam.
The coffee/soup machine at the local bus station is supposed to fill cups with 6 ounces of soup. Ten cups of soup are brought with results of a mean of 5.93 ounces and a standard deviation of 0.13 ounces. Construct a 99% confidence interval for th..
Solve the equations using linear algebra
Using the probabilities above what is the expected size of family you draw?
Calculate expected number of interruptions per day. Calculate standard deviation.
For a sample of 11 independent observations from a normal distribution of unknown μ and unknown variance σ 2 , the sample mean is 74.6 and sample variance is 2.2. What is the lower point of the 90% confidence interval for μ?
Consider a Poisson probability distribution with 2 as the average number of occurrences per time period. Write the appropriate Poisson probability function.
Determine standard deviation be if sample contained 100 students rather than 50? How large the sample is required to decrease standard deviation of percentage who say "Yes" from 7% to 3.5%?
A director of an agency is hiring temporary help. In making plans, he has to know whether there isi any difference in the use of the agency at different seasons of the year.
Assume that the joint probability density function of X and Y is given by? Find the marginal probability density function of X.
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