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Professor Green gives two-month computer programming courses during the summer term. Students must pass a number of exams to pass the course, and each student is given three chances to take the exams. The following states describe the possible situations that could occur:1.
State 1: pass all of the exams and pass the course2.
State 2: do not pass all of the exams by the third attempt and flunk the course3.
State 3: fail an exam in the first attempt4.
State 4: fail an exam in the second attempt
After observing several classes, Professor Green was able to obtain the following matrix of transition probabilities:
At the present time, there are 50 students who did not pass all exams on the first attempt, and there are 30 students who did not pass all remaining exams on the second attempt. How many students in these two groups will pass the course, and how many will fail the course?
What is the "best strategy" ie gives the largest expected value? Is it "one toss", "two tosses", "three tosses", ....etc Justify your answer by showing all steps in reaching your conclusion.
Find the complex solution to this quadratic equation: x^2 + 6x + 10 = 0.
Shown below are rental and leasing revenue ?gures for of?ce machinery and equipment in the United States over a seven-year period according to the U.S. Census Bureau. Use these data to run a linear regression and then forecast the rental and leasi..
What are the limitations and assumptionbs of the t-test? What are some examples in your field (Nursing) for which you might use a t-test to compare a sample to the population and why?
Use the given contingency table to (a) find the expected frequencies of each cell in the table, (b) perform a chi-square test for independence, and (c) comment on the relationship between the two variables.
Assume that demand for the upcoming weekend is normally distributed with a standard deviation of 30. (a) What is the probability that all the hotel's room will be rented?
John conducted his study to measure self-esteem among victims of domestic violence before and after they complete an 8-week program for abuse victims with 10 individuals.
Here are fifty observations on the weight of tea bags. Calculate the Standard Deviation and Variance.
Which of the following is a correct statement about a probability? A. It may range from 0 to 1. B. It may assume negative values. 1. Which of the following is a correct statement about a probability?
Compute the mean, median and mode measures of central tendency for the number of years of work experience. Which measure does the best job of describing central tendency for this variable?
Speaking to a group of analysts in January 2006, a brokerage firm executive claimed that at least 70% of investors are currently confident of meeting their investment objectives.
A point Y is selected at random from interval (0,1). Then another point X is chosen at random from the interval (0,Y). Find probability density function for X.
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