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An urn contains nine red and one blue balls. A second urn contains one red and five blue balls. One ball is removed from each urn at random and without replacement, and all of the remaining balls are put into a third urn. If we draw two balls randomly from the third urn, what is the probability that one of them is red and the other one is blue?
Find the 90% confidence interval for the variance and standard deviation of the ages of seniors at oak park college if a sample if 24 students has a standard deviation of 2.3 years.
Standard deviation of 0.17 ounces, assuming the weight of cereal is normally distributed, determine the likelihood that a package will contain more than 12.2 ounces?
Find the expected value and variance for the number of tosses of a coin until the nth occurrence of a head.
Find the standard error of the difference in sample means,
Show that the distribution of a random variable X with possible values 0, 1, and 2 is determined by µ1 = E(X) and µ2 = E(X2)
If the p value for a test for difference of educational level of two groups is p=0.0184, is the difference statistically significant at the 0.01 level?
Does this article accurately describe the law of large numbers? Explain your answer.
the data from an independent-measures research study produce a sample mean difference of 6 points and an estimated
Test for normality of all the independent variables separately using normal probability plot - Test the hypothesis thatbankruptcy can be predicted
Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years. Find the probability that a randomly selected TV will have a replacement time less than 5 years.
What is the upper bound of the 95% confidence interval for the mean price for all phone types?
a little confused on this one.assume the probability of a household owning a blue-ray player is 0.70.what is the
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