The grаde distributiоn оn аn exаm in a class оf 300 students is as follows: Grade Frequency Relative Frequency 90-100 27 0.09 80-89 42 ----- 70-79 129 0.43 60-69 48 0.16 Below 60 54 0.18 Total 300 1.00 The relative frequency of students who scored between 80 and 89 on the exam was