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3. Seventy percent of the light aircraft that disappear while in flight in a certain country...
3. Sventy percent of the light aircraft that disappear while in flight in a certain country...
3. Sventy percent of the light aircraft that disappear while in flight in a certain country are subsequently discovered. Ofthe aircraft that are discovered, 60% have an emergency locator. whereas 90% of the aircraft not discovered do not have such a locator. Suppose a light aircraft has disappeared. a. Ifit has an emergency locator, what is the probability that it will not be discovered? b. If it does not have an emergency locator, what is the probability that it will...
Eighty percent of the light aircraft that disappear while in flight in a certain country are...
Eighty percent of the light aircraft that disappear while in flight in a certain country are subsequently discovered. Of the aircraft that are discovered, 61 % have an emergency locator, whereas 89% of the aircraft not discovered do not have such a locator. Suppose a light aircraft has disappeared. (Round your answers to three decimal places.) (a) If it has an emergency locator, what is the probability that it will not be discovered? (b) If it does not have an...
Migration patterns of birds can now be tracked using small, lightweight devices called geolocators that log...
Migration patterns of birds can now be tracked using small, lightweight devices called geolocators that log data on light levels that in turn can be processed to estimate location. The geolocators are attached to the bird but in some cases they have been known to fall off, and 70% of the devices that fall off are recovered (found and reported to a number etched on the device). Of the devices that are recovered, 60% have an emergency locator, whereas 90%...
Thirty percent of all telephones of a certain type are submitted for service while under warranty....
Thirty percent of all telephones of a certain type are submitted for service while under warranty. Of these, 60% can be repaired, whereas the other 40% must be replaced with new units. If a company purchases ten of these telephones, what is the probability that exactly four will end up being replaced under warranty? (Round your answer to three decimal places.)
A certain flight arrives on time 83 percent of the time. Suppose 154 flights are randomly...
A certain flight arrives on time 83 percent of the time. Suppose 154 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that (a) exactly 131 flights are on time. (b) at least 131 flights are on time. (c) fewer than 137 flights are on time. (d) between 137 and 141, inclusive are on time. I know that I supposed to get the mean and standard deviation from n which is 154 and...
A rare but serious disease, D, has been found in 0.01 percent of a certain population....
A rare but serious disease, D, has been found in 0.01 percent of a certain population. A test has been developed that will be positive, p, for 98 percent of those who have the disease and be positive for 3 percent of those who do not have the disease. Find the probability that a person tested as positive does not have the disease.
(3) Suppose the length of stay in a chronic disease hospital of a certain type of...
(3) Suppose the length of stay in a chronic disease hospital of a certain type of patient has the mean of 60 days with a standard deviation of 15 days. It is reasonably to assume an approximately normal distribution of the lengths of stay (a) If one patient is selected from this group at random, what the probability that this patient will have a length of stay between 50 and 90 days? at is selected from this group at random,...
Questions 1. If an unpolarized light passes through an ideal Polaroid filter, what percent of the...
Questions 1. If an unpolarized light passes through an ideal Polaroid filter, what percent of the light is transmitted? 2 Unpolarized light with intensity I, is incident on a Polaroid, and the emerging light strikes a second Polaroid with its axis at 60 to that of the first. Determine the intensity of the light after it has passed through the second Polaroid What is Brewster's angle when the light in the air is reflected off a surface of a lake?...
Problem 3. A video cassette recorder manufacturer is so certain of its quality control that it...
Problem 3. A video cassette recorder manufacturer is so certain of its quality control that it is offering a complete replacement warranty if a recorder fails within 2 years. Based upon compiled data, the company has noted that only 3 percent of its recorders fail during the first year, whereas 2 percent of the recorders that survive the first year will fail during the second year. The warranty does not cover replacement recorders. (a) Formulate the evolution of the status...
3) A certain blood test for a disease gives a positive result 90% of the time...
3) A certain blood test for a disease gives a positive result 90% of the time among patients having the disease. It also gives a positive result 25% of the time among people who do not have the disease. It is believed that 30% of the population has this disease a) What is the probability that a person with a positive test result indeed has the disease? b) What is the probability that the blood test gives a negative result?...
3. Sventy percent of the light aircraft that disappear while in flight in a certain country are subsequently discovered. Ofthe aircraft that are discovered, 60% have an emergency locator. whereas 90% of the aircraft not discovered do not have such a locator. Suppose a light aircraft has disappeared. a. Ifit has an emergency locator, what is the probability that it will not be discovered? b. If it does not have an emergency locator, what is the probability that it will...
Eighty percent of the light aircraft that disappear while in flight in a certain country are subsequently discovered. Of the aircraft that are discovered, 61 % have an emergency locator, whereas 89% of the aircraft not discovered do not have such a locator. Suppose a light aircraft has disappeared. (Round your answers to three decimal places.) (a) If it has an emergency locator, what is the probability that it will not be discovered? (b) If it does not have an...
Thirty percent of all telephones of a certain type are submitted for service while under warranty. Of these, 60% can be repaired, whereas the other 40% must be replaced with new units. If a company purchases ten of these telephones, what is the probability that exactly four will end up being replaced under warranty? (Round your answer to three decimal places.)
(3) Suppose the length of stay in a chronic disease hospital of a certain type of patient has the mean of 60 days with a standard deviation of 15 days. It is reasonably to assume an approximately normal distribution of the lengths of stay (a) If one patient is selected from this group at random, what the probability that this patient will have a length of stay between 50 and 90 days? at is selected from this group at random,...
Questions 1. If an unpolarized light passes through an ideal Polaroid filter, what percent of the light is transmitted? 2 Unpolarized light with intensity I, is incident on a Polaroid, and the emerging light strikes a second Polaroid with its axis at 60 to that of the first. Determine the intensity of the light after it has passed through the second Polaroid What is Brewster's angle when the light in the air is reflected off a surface of a lake?...
Problem 3. A video cassette recorder manufacturer is so certain of its quality control that it is offering a complete replacement warranty if a recorder fails within 2 years. Based upon compiled data, the company has noted that only 3 percent of its recorders fail during the first year, whereas 2 percent of the recorders that survive the first year will fail during the second year. The warranty does not cover replacement recorders. (a) Formulate the evolution of the status...
3) A certain blood test for a disease gives a positive result 90% of the time among patients having the disease. It also gives a positive result 25% of the time among people who do not have the disease. It is believed that 30% of the population has this disease a) What is the probability that a person with a positive test result indeed has the disease? b) What is the probability that the blood test gives a negative result?...
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