9. A new test is developed to test for a certain disease, giving "positive" or "negative" results to indicate that the person does or does not have the disease. For a person who actually has the disease, the test will give a positive result with probability 0.95. For a person who does not have the disease, the test will give a positive result with probability 0.05. Furthermore, only one person in 1000 actually has the disease. If a randomly selected person is given the test and tests positive, what is the probability that the person actually has the disease?
5. Which of the following is more probable:
correctly guessing all the answers on a 20-question true-false exam
flipping a coin 20 times and obtaining all heads
correctly guessing all the answers on a 10-question multiple-choice exam that contains five choices for each question
Support your choice with appropriate reasoning. Please give explanation thats the most important thing for me
2007-12-05 17:26:30 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
question 5 doesn't make sense. the first two options are the same because its 1/2 everytime. the third option is the worst option because its 1/5 everytime.
2007-12-05 17:34:34 · answer #1 · answered by george l 2 · 0⤊ 0⤋
Does God create something this is imperfect? there are a great type of flaws interior the coolest judgment of prepared faith. Take Adam and Eve, as an occasion. If God knows each and every thing, alongside with the destiny, and he created Adam and Eve, and he knew their nature, then he knew what selection they might make till now they made it, so then why be taken aback or offended with regards to the alternative they made? additionally, putting Adam and Eve interior the backyard with a fruit they don't seem to be meant to consume is like putting a 2-year-previous interior the kitchen with a jar of cookies on the floor and telling him to not consume any. Animals at the instant are not sinful. they are only as God created them. gay people who're born that way at the instant are not undesirable or sinful the two and should not ought to stay out an entire life of loneliness. prepared faith has been subverted by utilising those with an schedule.
2016-12-10 14:11:13 · answer #2 · answered by stines 4 · 0⤊ 0⤋
9. Probability that the person has the disease is
0.001 x 0.95 + 0.999 x 0.05 = 0.00095 + 0.04995 = 0.0509
2007-12-05 17:39:05 · answer #3 · answered by Swamy 7 · 0⤊ 0⤋