Mathematics, 06.08.2019 21:30 neariah24
Atest to determine whether a certain antibody is present is 99.6% effective. this means that the test will accurately come back negative if the antibody is not present (in the test subject) 99.6% of the time. the probability of a test coming back positive when the antibody is not present (a false positive) is 0.004. suppose the test is given to four randomly selected people who do not have the antibody. (a) what is the probability that the test comes back negative for all four people? (b) what is the probability that the test comes back positive for at least one of the four people?
Answers: 2
Mathematics, 21.06.2019 20:00
The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212
Answers: 1
Mathematics, 22.06.2019 00:30
Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.
Answers: 1
Mathematics, 22.06.2019 00:50
After reading 80% of her e-mails in her inbox, danette still has m unread e-mails. which of the following expressions could represent the number of e-mails danette had in her inbox before she started reading? choose 2 answers: (choice a) 5m (choice b) 1.8m (choice c) 80m (choice d) m/0.8 (choice e) m/1−0.8
Answers: 1
Atest to determine whether a certain antibody is present is 99.6% effective. this means that the tes...
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