In a group of students, the ratio of students wearing red shirts to students wearing blue shirts is 5.28. the ratio of students wearing yellow shirts to blue shirts is 4.36. write the ratio of students wearing red shirts to students wearing blue shirts as a fraction in simplest form.

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?