Determine the probability with decimal accuracy
In a certain college, 55% of the students are women. Assume we take a sample of 2 students. Determine the probability with 4th decimal accuracy that at least one of the 2 chosen students is a woman.
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A poll is given, showing 40% are in favor of a new building project. If 3 people are chosen at random, what is the probability that exactly 1 of them favor the new building project?
Suppose a certain engineering class is given midterm examination. The probability of student studying for exam is 0.7. Of those students who study, the probability of their passing midterm is 0.9. If a student doesn't study, his or her probability
According to the data from the College Board, the mean quantitatigve SAT score for female college bound high school seniors in 2009 was 500. Suppose that SAT scores are approximately Normally distributed with the population standard deviation of 1
The human gestation period (length of pregnancy) is 270 days with standard deviation of 9 days and is approximately Normlly distributed (assuming spontaneous labor). Determine the probability that randomly chosen woman's gestation period will be b
40 students take chorus class, The teacher for chorus randomly selects half the students to sing on Team 1, and the remainder of the students to sing on team 2. Suppose 10 students in the class are Hispanic
In large statistics class, students have taken two exams. For each of following situations, report what you would expect for value of correlation coefficient between exam 1 score and exam 2 score. Give a brief justification for your answer.
A new speed limit will be initiated such that approximately 10% of vehicles will be over the speed limit. Determine the new speed limit based on this criterion?
A study on the effects of tevelision -viewing upon childern reports that childern watch mean of 4.0 hours of TV per night. Linda thinks that the mean number of hours childern in her neighborhood watch tv per night is greater than 4.0 hours. A. Wri
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