The members of maggie's choir have a mean height of 58 inches, with a standard deviation of 4 inches. the choir includes both children and adults, and the distribution of their heights is not symmetric, between what two heights does chebyshev's theorem guarantee that we will find at least approximately 89 % of the choir members?

41/2 - 1 1/3 what is the answer as a fraction?

Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27

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