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Will you assume independence
In which of the following games of chance would you be willing to assume independence of X and Y in making a probability model? Explain your answer in each case.
(a) In blackjack, you are dealt two cards and examine the total points X on the cards (face cards count 10 points). You can choose to be dealt another card and compete based on the total points Y on all three cards.
(b) In craps, the betting is based on successive rolls of two dice. X is the sum of the faces on the ?rst roll, and Y the sum of the faces on the next roll.
If 49 applicants are randomly chosen, what is the probability that they will have a rating between 230 and 260? Round z scores to two decimal places.
the following sample was obtained from a population with unknown parameters.scores 612034.a. compute the sample mean
What is the probability that the number of tails is between 87 and 100 inclusive. round the final answer to 4 decimal places.
The mean arrival rate is 15 cars per hour. What is the probability that 20 or more cars will arrive during any given hour of operation?
a scientific committee of 4 persons is to be randomly selected from a group consisting of 3 biologists 3 physicists and
The area under the standard normal curve that lies to the left of -1.39 is 0.0823. Without consulting a the table giving areas under the standard normal curve, determine the area under the standard normal curve that lies to the right of 1.39.
We want to test the hypothesis that the population variances are equal.
a small business just leased a new computer and color laser printer for three years. the service contract for the
Consulting income at Kaplan Associates for the period February - July is shown in the table below. Assume that the initial forecast for February is $65,000. Use Exponential smoothing to forecast August's income. Month Income ($1,000) February 70.0 Ma..
Suppose that the number of calories in McDonald's Egg McMuffin is normally distributed random variable with mean of 290 calories and standard deviation of 14 calories.
Does this mean which you can enhance life savings by spending more money? Describe how this correlation is true. How does this apply or could apply to workplace or home?
a drug manufacturer claimed that the mean potency of one of its antibiotics was 80. a random sample of 100 capsules
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