Let X be a random variable over a probability space (N,F,P). Is |X| a random variable? What about X™ for any natural number m?
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- Let W be the event that a randomly chosen person drinks sixty-four ounces of water per day. Let V be the event that a randomly chosen person has varicose veins. Place the correct event in each response box below to show: Given that the person drinks sixty-four ounces of water per day, the probability that a randomly chosen person has varicose veins. P(_/_)Assume that when human resource managers are randomly selected, 53% say job applicants should follow up within two weeks. If 7 human resource managers are randomly selected, find the probability that at least 5 of them say job applicants should follow up within two weeks. The probability is (Round to four decimal places as needed.)5
- Assume that when human resource managers are randomly selected, 39% say job applicants should follow up within two weeks. If 6 human resource managers are randomly selected, find the probability that exactly 2 of them say job applicants should follow up within two weeks. The probability is (Round to four decimal places as needed.)Assume that when human resource managers are randomly selected, 46% say job applicants should follow up within two weeks. If 13 human resource managers are randomly selected, find the probability that fewer than 3 of them say job applicants should follow up within two weeks. The probability is (Round to four decimal places as needed.)Assume that when human resource managers are randomly selected, 44% say job applicants should follow up within two weeks. If 6 human resource managers are randomly selected, find the probability that exactly 2 of them say job applicants should follow up within two weeks. The probability is (Round to four decimal places as needed.)
- Two marbles are drawn at random and without replacement from a box containing 6 blue and 1 red marbles. Let event A is defined as two blue marbles are drawn. The probability of event A is (Round your answer to three decimal places if needed)The finish of a hole depends on the edge of the bit used, only 1% of the holes with a new drill have an irregular cut, 3% have an irregular cut with average bits and 5% present irregular cut with worn bits. If 25% of the holes are made with new bits, 60% have average edges and 15% are worn out. [use 3 decimal places] a) If a piece is taken at random, what is the probability of having holes irregular? b) If a piece with irregular holes is taken, what is the probability that would have been made with an average drill bit?Which one of the following is not a true for the Negative Binomial distribution ? a) The random variable can start at y =0 b) The trials in the experiment are independent c) The negative binomial distribution parameters are the number of successes and the probability of a success d) The random variable denotes the number of failures that occured until the rth success is obtained e) There are only two outcomes, a success and a failure
- You roll a fair six-sided die three times. What is the probability that there are at least two differentnumbers among the results?Assume that when human resource managers are randomly selected, 51% say job applicants should follow up within two weeks. If 10 human resource managers are randomly selected, find the probability that at least 7 of them say job applicants should follow up within two weeks. The probability is (Round to four decimal places as needed.)Suppose that the discrete random variable X counts the number of heads in four tosses of a balanced coin. What is the probability of tossing at least two heads?