What is the ratio of Asian male graduates to Asian female graduates from Harvard University in 2013?
ratio = MULTIPLY(DIVIDE(SUM(grad_cohort WHERE Gender = 'M'), SUM( grad_cohort WHERE Gender = 'F')), 1.0); Asian refers to race = 'A'; female refers to gender = 'F'; graduates refers to grad_cohort; male refers to gender = 'M'; Harvard University refers to chronname = 'Harvard University'; in 2013 refers to year = 2013;
SELECT CAST(SUM(CASE WHEN T2.Gender = 'M' THEN T2.grad_cohort ELSE 0 END) AS REAL) / SUM(CASE WHEN T2.Gender = 'F' THEN T2.grad_cohort ELSE 0 END) FROM institution_details AS T1 INNER JOIN institution_grads AS T2 ON T1.unitid = T2.unitid WHERE T1.chronname = 'Harvard University' AND T2.year = 2013 AND T2.race = 'A'