Mathematics, 30.09.2019 22:30, yqui8767
1) the value of a mobile depreciates by 40% per year. work out the current value of a mobile bought 3 years ago.
2) in a '60% off' sale, an outfit was £86. work out the original price
Answers: 2
Mathematics, 22.06.2019 01:30, iBrain
Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30
Answers: 1
Mathematics, 22.06.2019 02:30, GreenHerbz206
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
1) the value of a mobile depreciates by 40% per year. work out the current value of a mobile bought...
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