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Suppose that two students named Gwyneth and Josephine have a total of 20 CDs in their room, consisting of 5 blues CDs and 15 reggae CDs. Each of the students chooses 7 CDs at random (without replacement), with all choices equally likely. (Thus, altogether, 6 CDs remain unchosen.) Let X denote the number of blues CDs that Gwyneth selects. Let Y denote the number of blues that Josephine select. find thecovariance between x and y
The length of the snake Vipera bertis (X), measured in centimeters, is assumed to be normally distrubuited with mean 63 and variance 22. The weight (Y) is measured on grams, can be calculated by using Y= -300 + 7x.
q1.a soda producer makes and sells two products classic cola and diet cola. if this company spends x1 dollars on
Explain what each of the metrics in the summary statistics means and what are they telling you about this data set? Is it symmetrical, flat, skewed, does it have outliers, and so on
What is the unregulated competitive equilibrium and what is the social optimum specific tax (per unit of output of gunk) results in the social optimum
Fall beyond or between the designated ages/scores.
The probability that a given bird house will be returned for a refund is 0.04. Suppose that 30 bird houses are sold on a particular day. Find the probability that exactly 2 of those bird houses will be returned for a refund.
What is the probability that at least one of the flights will be late and why the binomial model is not appropriate for finding the probability that at least one flight will be late.
Identify a business research topic and define the research questions for the identified problem or opportunity
The average pay per hour for an employee in the packaging and shipping department of XYZ Corporation is $12.88 with a standard deviation of $0.95. Assume normal distribution applies
in table 2 in p. 175 hatchett and park 2004 presented the correlations among optimism lot-r total and positive items
question 1 1.a recent study by a major financial investment company was interested in determining whether the annual
What would be the appropriate statistical procedure to test the following hypothesis: "Triglyceride values are a good predictor of weight in obese adults." What are the functions of parametric statistical procedures?
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