Mathematics, 17.03.2020 17:43 xwilliams83
An ornithologist who specializes in cockatoos in Australia decides to estimate the cockatoo population in a certain region. To do so, he traps 54 cockatoos and marks them. After releasing the cockatoos and waiting a bit, he traps 290 cockatoos and observes that 29 of them are marked. To the nearest whole number, what is the best estimate for the cockatoo population?
Answers: 2
Mathematics, 21.06.2019 17:30
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Mathematics, 21.06.2019 20:30
Give the functions f(x) = |x + 2| - 3, what is the domain? a,b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2
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Point s lies between points r and t on . if rt is 10 centimeters long, what is st? 2 centimeters 4 centimeters 6 centimeters 8 centimeters
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Mathematics, 22.06.2019 00:30
Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)
Answers: 2
An ornithologist who specializes in cockatoos in Australia decides to estimate the cockatoo populati...
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