A principal simulated a student raffle using 500 trails and recorded the grade level of the winner each time. The results are shown in the table.

A principal simulated a student raffle using 500 trails and recorded the grade level of the winner each time. The results are shown in the table. Based on the data from the simulation, what is the probability that the winner will be in Grade 11? Students in grade 9 = frequency 152, grade 10 =frequency 130, grade 11 =frequency 80, grade 12=frequency 98.