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A box contains 4 red balls, 3 orange balls, and 2 yellow balls; and each ball has the same size. In how many ways can you remove (without replacement) 2 red, 2 orange, and 2 yellow balls (in any order) from the box mentioned?
Statistics and Probability, Statistics
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Suppose a random sample of n = 49 observations is selected from a population that has normal distribution with mean 106 and standard deviation 12. a) Give the mean and the standard deviation of the sample mean X. b) Find ...
A researcher determines that students study an average of 60 15 (M SD) minutes per week. Assuming these data are normally distributed, what is the z score for students studying 45 minutes per week?
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Out of 350 applicants for a job, 158 are female and 66 are female and have a graduate degree. Step 1 of 2: What is the probability that a randomly chosen applicant has a graduate degree, given that they are female? Expr ...
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