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Question: A box contains 8 tickets. Tow are marked 1, two marked 2, marked 3, and tow marked 4. Tickets are drawn at random from the box without replacement until a number appears that has appeared before. Let X be the number of drawn that are made make a table to display the probability distribution of X.
A random sample of 85 group leaders and supervisors revealed that they worked an average of 6.5 years before being promoted. The population standard deviation was 1.7 years. Using the 0.95 degree of confidence, what is the confidence interval for ..
Identify the independent variables in the experiment.- Write a model relating the mean milk production, E(y), to the independent variables. Identify and code all dummy variables.
the purchasing department of major company has 100 employees 22 of whom have no children 50 of whom have exactly one
If the supplier selects the pairs of earrings at random, what is the chance that the jewelry store gets exactly two sets of platinum pairs?
let x be a continuous random variable with probability density function fx given byfx ??1 6x2 3x if ?3 ? x ? 0kx?x2 if
The Card structure below represents a playing card with a face value and a suit. Using the main code given, set the cards in the deck array to be one of each kind of playing card.
a. What is the probability that A occurs? (Round your answer to 2 decimal places.) b. What is the probability that B2 occurs? (Round your answer to 2 decimal places.)
consider steam at 1600 psia and 1200 fahrenheit. determine the specific volume by using the principle of corresponding
University officials at a major university would like to use three -term moving averages to examine enrollment. Enrollment data (in thousands of students) for the 12 most recent terms are shown in middle column of the table below.
Use the Histogram option from Data Analysis to examine whether the daily percentage scrap from the machine is normally distributed. Comment on the findings.
Researchers routinely choose an alpha level of 0.05 for testing their hypotheses. What are some experiments for which you might want a lower alpha level (e.g., 0.01)? What are some situations in which you might accept a higher level (e.g., 0.1)?
Ten million people enter a certain lottery. For each person, the chance of winning is one in ten million, independently.
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