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Explain in detail and give an original example of the four types of probability.
1) Marginal probability
2) Union probability
3) Joint probability
4) Conditional probability
If sales is the variable you are trying to explain and you have 2 independent variables of color and price. The color coefficient is 100, and the price coefficient is -200. You have an intercept coefficient of 999 and an r-squared value of .2706. ..
At the 0.05 significance level, can he conclude that number of absences has declined? calculate approximately the p -value.
A pediatrician is interested in studying the effect of Motrin on reducing temperature in young children. Four children with influenza have their temperatures taken immediately before and then 20 minutes after taking a standard dose
Use a two proportion z-test to perform the required hypothesis test. State the conclusion.
The manager for Select-a-Seat, a company that sells tickets to athletic games, concerts, and other events, has determined that the number of people arriving at the Broadway location on a typical day is Poisson distributed with a mean of 12 per hou..
Which of these following statements provides the best guidance for the model building?
If a Normal model is useful for describing slalom times, approximately how many of the other 35 skiers finishing the event would you expect skied the slalom faster than Jean-Baptiste?
What is the probability that a U.S. user who downloads music, selected at random, obtained it from either the United States or Canada.
A psychologist claims that more than 6.3% of the populations suffer from professional due to greate shyness. Categorize the Type II error in this context.
Express Courier Service has found that the delivery time for packages is normally distributed, with mean 13 hours and standard deviation 2 hours.
How many students should be surveyed to estimate the mean score within 25 points with 90% confidence?
Reliable Furniture is a family business that has been selling to retail customers in the Chicago area for many years. They advertise extensively on radio and TV, emphasizing their low prices and easy credit terms.
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