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Mathematics, 21.06.2019 13:00
Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b
Answers: 2
Mathematics, 22.06.2019 00:00
Let u = {q, r, s, t, u, v, w, x, y, z} a = {q, s, u, w, y} b = {q, s, y, z} c = {v, w, x, y, z}. list the elements in the set.a ∩ (b ∪ c)a) {q, s, w, y}b) {q, y, z}c) {q, s, u, w, y, z}d) {q, r, w, y, z}
Answers: 1
Mathematics, 22.06.2019 02:30
Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias
Answers: 2
Mathematics, 12.08.2019 00:10
Mathematics, 12.08.2019 00:10
English, 12.08.2019 00:10
Computers and Technology, 12.08.2019 00:10
Mathematics, 12.08.2019 00:10
Mathematics, 12.08.2019 00:10
Mathematics, 12.08.2019 00:10