Mathematics, 12.01.2021 14:00 hsjsjsjdjjd
A university has 20,000 students. The student have ages with the following probabilities: 40% are age 18, 30% are age 19, 20% are age 20, and 10% are age 21. If a student is chosen at random, what is the student's expected age?
Answers: 3
Mathematics, 20.06.2019 18:04, alosnomolina1122
Write a positive or negative number to represent each situation. a. you win 150 dollars in a contest b. a loss of 15 yards in a football game c. 75 feet below sea level d. 35 degrees above 0 f e. a debt of 24.75 dollars
Answers: 1
Mathematics, 21.06.2019 13:00, chazpooh208
Small kingdoms on the iberian peninsula fought to take land back from the moors during which event? the hundred years’ war the wars of the roses the reconquista the great schism
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Mathematics, 21.06.2019 18:30, jacksonhoyt8049
Can someone me do math because i am having a breakdown rn because i don’t get it
Answers: 1
Mathematics, 22.06.2019 00:30, tremainecrump1466
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
A university has 20,000 students. The student have ages with the following probabilities: 40% are ag...
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