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What is the probability of an event? What are mutually exclusive events? What does collectively exhaustive mean? How can we use contingency tables to solve for the probability of two events occurring at the same time? What is a conditional probability? Finally, explain the difference between the addition rule and the multiplication rule.Use the following data to support answers to the questions above:Out of 1000 respondents to a survey, 250 people planned to purchase a TV of which 200 actually purchased and 50 did not actually purchase. 750 people did not plan to purchase at TV, of which 100 actually purchased and 650 did not actually purchase. Put this data in the form of a contingency table and apply to some of the concepts above. For example, what is the probability that a person planned to purchase a TV? What is the probability that a person planned to purchase and actually purchased a TV? What is the probability that a person purchased a TV conditional on the fact that they planned to purchase a TV? Feel free to slice it and dice it as many ways you like to review for the exam.
When students go to the Health Center these days complaining of pain, they are asked to assess their pain using emoticons. One person's assessment is an example of what kind of data?
How might variance and standard deviation be applied to a real-world business-related problem? Provide a specific application in which these measures are useful.
The ground floor of the campus building, what is the probability that at least 3 students selected are undergraduate students?
If sales follow a normal distribution with mean = 70,000 and st. deviation= 5,000 per day, how many loaves should Amazing bake daily?
Derive the probability distribution of the completion times - For each of the distribution in (i) above, calculate their relevant statistics. A task is known to have the following time to completion
In an effort to estimate the mean amount spent per customer for dinner at a major Atlanta restaurant, data were collected for a sample of 49 customers. At 95% confidence, what is the margin of error (to 1 decimal)?
Nicotine patches are often used to help smokers quit. Does giving medicine to fight depression also help? A randomized double blind experiment assigned 244 smokers to receive nicotine patches and another 245 to receive both a patch and the antidep..
1 per cent produced by Machine 2 were defective. If an item selected at random is found to be defective, what is the probability that it was produced by Machine 2.
Then the percentage of women in the populations is 53% and the percentage of men is 47%. If you were to sample 144 people at random, how many would you expect to be women?
Calculate the correlation coefficient, coefficient of determination. Check whether there is a relation between correlation coefficient and coefficient of determination.
How can you tell what are the solutions of a quadratic equation by looking at its graph? Explain.
Use a graphical technique to compare the divorce rates in 1992, 2008 and 2012 broken down by age for Australian Male. Describe your graph.
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