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1) From a high school with 40 freshman, 38 sophmore, 35 juniors, and 30 seniors, a random sample of 8 students is taken without replacement. What distribution should be used? What is the probability that a given drawing will have two students from each class?
2) Compute the expected value of the random variable X. Show all steps. X ~ binomial(3,0.6).
Why is it misleading to draw the conclusion from the test above that long-time exposure to cadmium reduces the vital capacity?
Let S be a random variable (not necessarily positive). Prove using Markov's inequality that for every p>0 and for every constant q,
construct a bootstrap distribution of the credit card debt data from your sample using 3000 resamples.a paste a copy of
The Roller Products Company produces roller skates and skateboards. It has three production lines. Production line 1 makes skateboard platforms.
For a discrete probability function that is given as: a. What is the expected value E(Y)? b. What is the standard deviation (σ) of the random variable Y?
Three scholarships are available for students. Their values are: $2,000, $2,400, $3,000. Twelve students have applied and no student may receive more than one scholarship. Assume all twelve students are in needs of the funds, how many different..
a student gets quiz grades of 557082 and 94. he gets a score of 85 on his final exam. find the weighted mean if the
seventy percent of the bicycles sold by a certain store are mountain bikes. among 100 randomly selected bike purchases
A social psychologist reports that "in our sample, ethnocentrism was significantly higher (P
Determine the mean, median, and mode for data set: 12.75, 18.32, 19.41, 12.75, 18.30, 19.45, 19.33
Determine how many miles they live from the Bank, is the mean travel distance for this sample considered a parameter or a statistic? Explain.
In a Gallup Poll of 1005 randomly selected Americans in April 2006, 482 responded "yes" to the question, "Do you consider the amount of federal income tax you have to pay as too high?"
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