12 Some students are asked if they like football (F) or rugby (R). The Venn diagram shows the results. % R F 33 7 6 4 (a) Find the number of students who do not like rugby. ................................................. [1] (b) Use set notation to describe the region containing students who like rugby but not football. ................................................. [1] M SIHT NI ETIRW TON OD NIGRAM SIHT NI ETIRW TON OD NIGR